English Spelling Mistakes Portuguese Speakers Make, and the Fixes

You write responsable and the red line appears. Then confortable, oportunity, inteligente. Your English is good: you read easily, you speak with confidence, you can follow a meeting or a film without subtitles. Yet your spelling keeps quietly announcing that you think in Portuguese.

That is not a weakness, and it is worth understanding why. Portuguese and English share thousands of words through Latin, and your brain is doing the sensible thing, which is reusing what it already knows. Most of the time that works perfectly. The mistakes happen at the edges, where the two languages took the same Latin word and spelled it slightly differently, and those edges follow patterns you can learn in an afternoon.

What follows applies to speakers from Brazil, Portugal, Angola, Mozambique and everywhere else Portuguese is spoken. It covers the handful of patterns behind most errors, the cognates that help and the ones that trap, thirty words worth practicing, and a plan that fixes them in a few weeks.

Why Portuguese shows through in your English

Linguists call this transfer: carrying habits from your first language into a second one. The linguist Terence Odlin wrote the standard account of it in 1989. In 2006, Lesly Figueredo reviewed the research on learners' spelling specifically, finding clear traces of the first language in how people spell English, especially in the earlier years of learning.

Transfer runs in both directions. When a word is identical in both languages, you get it right for free, which is why hotel, animal, hospital, normal and total never cause trouble. That is positive transfer, and for Portuguese speakers it is enormous. When a word is almost identical, the Portuguese spelling slips in unnoticed. That is where nearly all the mistakes live.

There is a second, deeper difference. Portuguese spelling is far more regular than English: if you can say a Portuguese word, you can almost always write it. English does not offer that guarantee. The same sound can be spelled several ways, some letters are not pronounced at all, and unstressed vowels collapse into an indistinct "uh." So the ear, which serves you so reliably in Portuguese, is a weaker guide in English, and it needs a partner. That partner is pattern knowledge.

Cognates: your best friend and your favorite trap

A cognate is a word that shares its origin, and usually its meaning and much of its spelling, with a word in another language. Think of informação and information, universidade and university, possível and possible: you already know thousands of English words because of pairs like these.

The endings, however, shift in regular ways, and it is easy to keep the Portuguese one by accident. Learn the swaps and whole families of words fall into place at once.

The last row deserves a closer look, because here Portuguese is often a better guide than English itself. English speakers struggle to choose between ence and ance, since both sound identical, but Portuguese usually tells you: existência gives existence, independência gives independence, relevância gives relevance. It is not perfect. Aparência is appearance, resistência is resistance and assistência is assistance, so those three are worth learning as exceptions, but the rule of thumb is a real advantage that native speakers do not have.

The same is true of -ável and -ível, which mostly map onto -able and -ible. Portuguese will correctly tell you that acessível is accessible and flexível is flexible, two words that trip up native speakers constantly. The famous exception is responsável, which has an a where English responsible has an i, and that single mismatch is why responsable is among the most common errors for Portuguese speakers. Able or ible explains the English rule in full.

Double letters: the biggest single problem

Portuguese doubles very few consonants, essentially only rr and ss. English doubles constantly: ff, mm, pp, tt, cc, ll. Many of the words involved are cognates, which makes the problem worse rather than better, because your Portuguese memory supplies a single letter with total confidence.

There is a useful clue for many of these. A large number of English words begin with a Latin prefix whose final letter has merged with the letter after it. Latin com joined to munis gave communicate; ad joined to tendere gave attention; ob joined to portus, a harbor, gave opportunity. When a word begins with com, ap, at, op, ac, ef or im, pause and ask whether the next letter doubles. Surprisingly often, it does. The pattern is explained further in consonant doubling in the middle of words.

The vowel your hand wants to add

Portuguese words overwhelmingly end in a vowel. English words very often end in a consonant. The result is a quiet but persistent tendency to add a final e.

It shows most clearly in the -nte family: importante becomes important, diferente becomes different, presidente becomes president, estudante becomes student, inteligente becomes intelligent, which also doubles its l. It shows again in words that end in -ema or -ama in Portuguese: sistema, problema, programa and tema become system, problem, program and theme.

Pronunciation reinforces the habit. Many Brazilian speakers add a small "ee" sound after a final consonant, so internet can come out close to "internetchee" and Facebook close to "Facebooky." That is a perfectly normal feature of Brazilian Portuguese, and in speech it barely matters. But if you spell what you hear yourself say, the extra vowel creeps onto the page.

The fix is a habit of checking. When a word ends in nt, st, ct or m, look at the last letter before moving on. English does have a genuine silent final e, in hope, make and write, and it matters, because it changes the vowel before it: hop and hope are different words. That e is a signal, not decoration, and it never appears after nt.

Letters Portuguese rarely uses

For most of the twentieth century, k, w and y were not officially part of the Portuguese alphabet. The 1990 Orthographic Agreement, which took effect in the years after 2009, restored them, but they still appear mainly in foreign names and borrowings. English uses all three all the time, and it also keeps several Greek spellings that Portuguese simplified long ago.

The y is the biggest source of errors. English writes system, type, psychology, physical and rhythm with a y where Portuguese writes sistema, tipo, psicologia, físico and ritmo with an i. Greek words bring ph and th, so farmácia, filosofia and fotografia become pharmacy, philosophy and photography, and teoria becomes theory. A simple rule of thumb helps. If a word is scientific, medical or abstract, and Portuguese spells it with f, t or i, check for ph, th or y in English.

Greek also explains química becoming chemistry, where English ch stands for the k sound. Silent letters are a separate trap: the k in know and knowledge has not been pronounced for centuries. Silent letters in English collects them in one place.

The letter h, and the letters you cannot hear

In Portuguese, an initial h is always silent: hora, hoje, homem. In English, it is usually pronounced, as in house, happy and hospital, and silent only in a few words such as hour, honest and honor. The practical danger is dropping an h that English keeps. Brazilian Portuguese writes umidade and úmido with no h, while English has humidity and humid; humor, human and herb deserve the same attention.

Vowels are the other hidden trap. Portuguese assigns each vowel letter a fairly clear sound. English assigns one sound many spellings: the "ee" sound is ee in see, ea in sea, ie in piece and ei in receive. No amount of careful listening will choose between them. Those words have to be learned as words.

A brief word on false friends, since they travel with spelling errors. Pretend does not mean pretender, actually does not mean atualmente, library is not livraria, and sensible means reasonable, while sensível means sensitive. These are meaning traps rather than spelling traps, but they come from the same place: a Portuguese word stepping into an English sentence uninvited.

Thirty words to practice

These thirty words come straight from the patterns above. Say each one aloud, then spell it from memory before you look.

A few notes. Comfortable has an m, where Portuguese confortável has an n. English normally writes n before f, as in information, so comfort is an old quirk rather than a rule, and it simply has to be learned. Example has an a where Portuguese exemplo has an e. And government keeps an n that Portuguese governo never had, which is why goverment is one of the most common misspellings in English, for everyone.

Do not try to learn all thirty at once. Take five, learn them properly, then add five more.

A practice plan that works

Two findings from memory research will save you a great deal of time. The first is that testing yourself beats rereading: in a well-known 2006 study, Henry Roediger and Jeffrey Karpicke found that students who practiced recalling material remembered much more a week later than students who simply read it again. The second is that practice spread over several days beats a single long session, an effect first documented by Hermann Ebbinghaus in the 1880s and confirmed many times since.

So the daily plan is short. Spend about ten minutes with five to ten words. Hear each word, from a friend, a recording or an app, and spell it from memory. Check every letter. Words you miss come back tomorrow; words you get right come back in a few days, then a week later.

Hearing the word matters more than it seems. If you look at a word and then write it, you are copying. If you hear it and have to produce it, you are retrieving it, and retrieval is what makes it last. Spelling.School works this way: a recorded American voice says the word, you type it, and the app shows exactly which letters went wrong, which for Portuguese speakers is usually a single missing double or an extra e.

Keep your own list, too. Every time a teacher, a colleague or a spell-checker marks a word, add it. A list built from your real errors is worth more than any list you will find online. For a broader look at what makes English spelling hard for every learner, and what reliably helps, see why English spelling is so hard for non-native speakers.

One last point. If you learned English in Portugal, you may have been taught British spelling, colour and organise; many Brazilian schools teach American spelling instead. Both are correct. Choose one for each piece of writing and use it consistently.

What to do next

Look down the table of thirty words and choose the five that look most like your own mistakes. Tonight, have someone read them to you and spell each one without looking. Check them, circle the misses, and tomorrow try only the circled words again.

If you would like a quick way to begin, the home page has a five-word demo that needs no sign-up. Whatever you use, remember the proportions. Your Portuguese is already doing most of the work. You only need to train the edges.

Questions people ask

Which English words do Portuguese speakers misspell most?

The most common errors are cognates written the Portuguese way, such as responsable for responsible, confortable for comfortable, oportunity for opportunity, comunication for communication and importante for important. Most of these come from missing double letters, an extra final e, or a Portuguese ending that was not converted to its English form. Learning the regular swaps between the two languages fixes many words at once.

Why do Portuguese speakers write confortable?

Because the Portuguese word is confortável, spelled with an n. English writes comfortable with an m, even though English normally uses n before f, as in information, so comfort is an old irregular spelling rather than a rule. Because the two words look almost identical, the Portuguese spelling feels right, and the English word has to be learned as a single unit.

Are Portuguese cognates a help or a trap in English spelling?

They are both, but mostly a help. Cognates give Portuguese speakers thousands of English words with little effort, and Portuguese endings such as -ência and -ância often reveal the correct English ending better than English pronunciation does. The traps are doubled consonants, a few endings that do not line up, such as responsável and responsible, and Greek spellings like ph, th and y that Portuguese simplified.

How do I stop adding an e to the end of English words?

Remember that many English words end in a consonant where the Portuguese cognate ends in a vowel, especially words ending in nt, such as important, different, student and president. Many Brazilians also pronounce a small vowel after final consonants, which can creep into spelling. Before you finish a sentence, check the last letter of any word ending in nt, st, ct or m.

How can a Brazilian improve English spelling quickly?

Focus on the few patterns that cause most errors: double letters, word endings, the final e, and Greek spellings with ph, th and y. Practice five to ten words a day from memory, hearing each word and spelling it before checking every letter, and bring missed words back the next day. Short daily practice spread over two or three weeks fixes most of the common mistakes.

Should Portuguese speakers learn British or American spelling?

Either is correct, and major English exams accept both. Many learners in Brazil are taught American spelling, while many in Portugal learn British spelling. What matters is consistency, so choose one system and use it throughout the same piece of writing rather than mixing colour and color or organise and organize.

Fix the words you actually get wrong

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