I'mvsisWhich spelling fits?

Quick tell: I'm is a abbrev, is is a verb, so they fill different roles in a sentence.

Which to use

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

#5,721
“I'm” frequency rank
#478
“is” frequency rank
6199
confusion score

Side-by-Side Comparison

Feature I'm is
Definition Kurzform für: I am; ich bin [1] umgangssprachlich, dialektal, norddeutsch: 3. Person Singular Indikativ Präsens des Verbs sein

Where the eye mixes I'm and is

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

3 ch
I'm
2 ch
is

Why the eye confuses I'm with is

These two trip readers on the page rather than in the ear: I'm is [aɪm] while is is [ɪs]. 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 (abbrev vs verb), which is usually the fastest check. Our composite confusion score for this pair is 6199, derived from the frequency rank of both members and their visual similarity.

I'm is recorded at frequency rank #5,721, classified as anabbrev, pronounced [aɪm]. is is at rank #478, tagged as averb, pronounced [ɪs].

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 6199, this pair ranks #1,992,402 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of I'm vs is

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

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

Frequently Asked Questions

Can "I'm" and "is" be used interchangeably?
No - they are not even the same part of speech. "I'm" is an abbrev and "is" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "I'm" or "is"?
"is" is the more common of the two: it sits at frequency rank #478 in our German list, against #5,721 for "I'm". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "I'm" and "is" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "I'm" 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 #1,992,402 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "I'm" and "is" also get mixed up with nearby pairs, the highest-scored neighbour is "I'm vs IMs". Nearby pair

Confusion rank #1,992,402 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list