We use tag questions, Ahmad, to check information or to ask for agreement. If we use a rising intonation in the tag, we do not know or are not quite sure of the answer. If we use a falling intonation ...

'Can', 'could', 'be able to', 'manage to' Present tenses Present perfect continuous Quantifiers Phrasals First and zero conditional Modals of deduction and speculation The past perfect Adjectives and ...