English grammar sticks when learners use it in real sentences, again and again. This free ESL grammar worksheet generator uses a sentence bank written for every grammar point and level, Grades 3 to 10: choose the grammar point, the exercise and the level, and get a new A4 worksheet with its answer key.
Student worksheet 
Answer key There is and there are, pronouns, possessives, plurals, countable and uncountable nouns, comparatives and superlatives, prepositions of place and time, can, must and should, conditionals, the passive, reported speech and relative clauses.
Fill in the gap (from the word in brackets), choose the correct option, find the mistake and rewrite the sentence (in the plural, in the passive, in reported speech, joined with if or a relative pronoun).
Each point follows the grades it is taught in: regular plurals in Grade 3 and irregular ones in Grade 5, the first conditional in Grade 8 and the third in Grade 10, the simple passive in Grades 8 and 9 and the continuous passive in Grade 10.
The wrong options are wrong in that sentence: never two forms that are both right with different meanings. When an answer has two forms (mustn't and must not, who and that), the answer key gives both.
Natural sentences in British English (colour, travelled, at home, in hospital), with true facts: who painted the Mona Lisa, which mountain is the highest.
The answers in blue on the same worksheet: the gaps filled in, the right option circled, the mistake and its correction and the rewritten sentences.
Original English scripts levelled by the CEFR, from Pre-A1 to B1, for the teacher to read aloud: tick the right picture, match, true or false and complete the notes, with the answers in the script.
English vocabulary worksheets with pictures to colour: match words and pictures, label the pictures and picture word searches, by topic and with an answer key.
Fill-in tables of irregular verbs with gaps in any column, grouped by level and by spelling pattern, with translation and an answer key.