'Can', 'could', 'be able to', 'manage to' Present tenses Present perfect continuous Question forms 'Like' for preference and description Adverbs of Frequency 'Have to' and 'must' Learn when we use the ...

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 ...

Learning English Grammar Present perfect and past simple Up next Question tags Talking about the future ...