This page has links to some online grammar resources for English teachers and learners.

British Council grammar: https://learnenglish.britishcouncil.org/grammar

Cambridge Dictionary Grammar: https://dictionary.cambridge.org/grammar/british-grammar/​

English Grammar: www.englishgrammar.org​

EGP (English Grammar Profile): https://languageresearch.cambridge.org/english-grammar-profile/egp-online​
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English Page: www.englishpage.com/grammar/​

English Practice: www.englishpractice.com/topics/grammar/​

English Tenses: www.englishtenses.com​

Grammaring: www.grammaring.com/contents​

Internet Grammar of English: www.ucl.ac.uk/internet-grammar/​

onestopenglish: www.onestopenglish.com/grammar/​

Oxford Living Grammar: https://elt.oup.com/student/livinggrammar/ - the number of activities has been greatly reduced because Oxford has not replaced those that relied on Flash in order to run. This is a huge pity.

Oxford Practice Grammar: https://elt.oup.com/student/practicegrammar/​ - the number of activities has been greatly reduced because Oxford has not replaced those that relied on Flash in order to run. This is a huge pity.

Perfect English Grammar: www.perfect-english-grammar.com​

Random Idea English: http://random-idea-english.blogspot.ch