I'd vs is, What's the Difference?

Which to use

“I'd” is a contraction and “is” is a verb - they look or sound alike but fill different roles in a sentence.

#33,016
“I'd” frequency rank: #1,709
“is” frequency rank: 34725
confusion score

Side-by-Side Comparison

Feature	I'd	is
Definition	contração de I would (esse caso é o mais utilizado)	contração de agus; e

Letter map: I'd vs is

Shared letters muted; letters that set I'd and is apart highlighted. Shared run: 1.

3 ch

I'd

2 ch

Grammar separator: I'd vs is

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: I'd is acontraction and isaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 34725, derived from the frequency rank of both members and their visual similarity.

I'd is recorded at frequency rank #33,016, classified as acontraction. is is at rank #1,709, tagged as averb.

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 34725, this pair ranks #32,469 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of I'd vs is

Shared letters: i. Private to "I'd": d. Private to "is": s.

"I'd" · 2 letters · shape VC · "is" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "I'd" for "is" ever safe?

No - they are not even the same part of speech. "I'd" is a contraction and "is" a verb, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "I'd" or "is"?

"is" is the more common of the two: it sits at frequency rank #1,709 in our Portuguese list, against #33,016 for "I'd". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "I'd" vs "is" is on the table, pick a follow-up below.

Full dictionary entry for "I'd" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "is" - compare definitions side by side with the headword page. Word entry
This pair ranks #32,469 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"I'd" and "is" also get mixed up with nearby pairs, the highest-scored neighbour is "I'd vs ino". Nearby pair

Confusion rank #32,469 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.