Pick an exercise

Finished time or not? The single most common intermediate slip.

Routines and facts against what is happening right now.

Regular -ed forms, irregulars, and questions and negatives with did.

Match each base form to its past simple and past participle.

Match everyday phrasal verbs to what they actually mean.

for, since, just, yet, already, ever: the words that pick the tense.

can, must, should, have to: obligation, advice and deduction.

Which verbs take -ing, which take to-, and which change meaning.

Decisions, predictions and plans: choose the future that fits.

am / is / are, do / does: the foundation everything else sits on.

First mention, second mention, and the times you use no article.

-er, -est, more, most, plus the irregulars that break the pattern.

Sort the nouns, and stop saying informations and advices.

Zero, first, second and third: match the halves of each if-sentence.

Rewrite active sentences in the passive, keeping the tense.

Backshift the tense, move the pronouns, drop the quotation marks.

Time and place: the pair of rules behind most preposition errors.

…isn't it? …doesn't she? Add the tag the sentence is asking for.

who, which, that, whose, and when you can drop the pronoun.

Rebuild the sentence, including the order adjectives have to go in.