Master 64 essential grammar concepts. Browse by difficulty and track your progress.
Use am, is, and are to describe people, places, and things.
Form and use the simple present tense for habits, facts, and routines.
Describe actions happening right now with am/is/are + verb-ing.
Express future plans and intentions with be going to.
Me, you, him, her, it, us, them — use them as objects in sentences.
My, your, his, her, its, our, their to show who owns something.
When to use the indefinite articles a and an, and the definite article the.
Describe existence and location of people and things.
Identify countable and uncountable nouns and use them correctly.
Form plural nouns correctly, including irregular and spelling-change forms.
Point to people and things near or far using this, that, these, and those.
Use have and has to talk about possession and personal characteristics.
Express ability, inability, and permission with can and can't.
Give commands, instructions, directions, and requests.
Ask questions with who, what, where, when, why, and how.
Form and answer yes/no questions using be and do as auxiliaries.
In, on, under, next to, between — describe where things are located.
At, on, in for time expressions — days, months, years, and clock times.
Use like and want followed by a noun or to + infinitive.
Join words and clauses using the most common English conjunctions.
Give short answers (Yes, I do.) and form tag questions (isn't it?).
