'Can', 'could', 'be able to', 'manage to' Subject questions Present tenses Present perfect continuous Quantifiers Phrasal verbs and prepositional verbs First and zero conditional Modals of deduction ...
'Can', 'could', 'be able to', 'manage to' Present tenses Present perfect continuous 'Like' for preference and description Adverbs of frequency 'Have to' and 'must' The past simple tense ...