Grammar category
Tenses
Verb tense forms, meanings and contrasts.
Topic
Past Continuous
Learn how to describe an action in progress at a particular past time. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Topic
Present Perfect
Learn how to connect past actions and experiences to the present. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Topic
Mixed Tense Review
Learn how to select tenses accurately by using time, sequence and aspect clues. Understand the meaning, follow the form, study clear examples and avoid common mistakes.