Whether teaching or learning the present perfect, it is often useful to present the two verb aspects in a contrastive way. Compare the following: 'Dick Francis has been writing novels since 1957. In ...

The present perfect is often used to talk about situations that started in the past and are continuing now. We sometimes use the present perfect in a question with how long to ask about how long a ...

'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 ...