What order should you learn Japanese grammar in?

Follow the JLPT ladder — N5, then N4, then N3, N2 and N1 — because it is ordered by frequency and each level genuinely depends on the one below it. The two places it misleads are plain form, which N5 postpones and N4 then demands all at once, and keigo, which the ladder places late even though you will meet it in your first week in a shop.

Key figures

Japanese grammar points in InputDojo
377
In the first two levels
128
N5 · N4 · N3 · N2 · N1
59 · 69 · 82 · 75 · 92

Learn plain form earlier than the ladder suggests

N5 is taught almost entirely in polite form, which is pedagogically convenient and creates a cliff. Every N4 pattern of consequence — conditionals, quotation, relative clauses, ~たことがある — attaches to plain form, so a learner arriving at N4 without it meets a conjugation system and half a level's grammar simultaneously. Learning the plain conjugations while still working through N5 costs a week and removes the sharpest jump in the sequence.

Keigo does not fit the ladder at all

Honorific and humble language is placed at N3 and above, which reflects its grammatical complexity and not its frequency. Anyone in Japan meets いらっしゃいませ and お願いします immediately. The practical resolution is to learn the common set phrases as vocabulary from the beginning and leave the productive system until the ladder reaches it — recognising keigo and constructing it are separate skills with very different timelines.

Within a level, order barely matters

Sequencing anxiety at the level of individual patterns is misplaced. Within N4 there is no dependency chain worth planning around, and the patterns that stick are the ones you happen to meet most often in what you read. Choose material slightly above your level and let the frequency decide; that produces a better order than any curriculum, because it is your material's actual distribution.

The pages behind these numbers

Frequently asked questions

Should I learn te-form or plain form first?

Te-form, because it appears constantly and unlocks requests, ongoing action and permission. Plain form should follow immediately rather than waiting for N4.

Do I need to follow the JLPT order?

It is a sound default because it is frequency-ordered. It is not a syllabus you owe anything to, and adjusting for what you actually read is usually an improvement.

When should I learn keigo?

The common fixed phrases immediately, as vocabulary. The productive system when the ladder reaches it at N3 and above.

Related questions

Counting words is not the same as knowing them

Import something you actually want to read. InputDojo tracks which words you have met, so the count on this page becomes a list of what is left rather than a target.