mayvsmoConfusable pair

Quick tell: may is a verb, mo is a pronoun, so they fill different roles in a sentence.

Which to use

“may” is a verb and “mo” is a pronoun - they look or sound alike but fill different roles in a sentence.

#5,226
“may” frequency rank
#4,745
“mo” frequency rank
9971
confusion score

Side-by-Side Comparison

Feature may mo
Definition obter permissão. Também utilizado quando se deseja fazer um pedido, de maneira cortês. combinação de me (pronome pessoal oblíquo átono) e o (pronome pessoal oblíquo átono, pronome demonstrativo masculino ou pronome demonstrativo neutro)

Where the eye mixes may and mo

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
may
2 ch
mo

Why the eye confuses may with mo

These two trip readers on the page rather than in the ear: may is /meɪ/ while mo is /mo/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 9971, derived from the frequency rank of both members and their visual similarity.

may is recorded at frequency rank #5,226, classified as averb, pronounced /meɪ/. mo is at rank #4,745, tagged as apron, pronounced /mo/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 9971, this pair ranks #63,271 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of may vs mo

Shared letters: m. Private to "may": ay. Private to "mo": o.

"may" · 3 letters · shape CVV  ·  "mo" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "may" for "mo" ever safe?
No - they are not even the same part of speech. "may" is a verb and "mo" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "may" or "mo" show up more?
"mo" is the more common of the two: it sits at frequency rank #4,745 in our Portuguese list, against #5,226 for "may". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "may" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #63,271 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "may" and "mo" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs may". Nearby pair

Confusion rank #63,271 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list