Grammar

Front

What is the present perfect tense?

Back

The present perfect tense is used to describe actions that occurred at an unspecified time in the past or that started in the past and continue to the present. It is formed using 'has' or 'have' + past participle.

Front

When do we use 'has' vs 'have'?

Back

'Has' is used with third-person singular subjects (he, she, it), while 'have' is used with first-person (I, we) and second-person (you) subjects, as well as third-person plural subjects (they).

Front

What is the simple past tense?

Back

The simple past tense is used to describe actions that were completed in the past. It is formed by using the past form of the verb.

Front

How do you form a question in the simple past tense?

Back

To form a question in the simple past tense, use 'did' + subject + base form of the verb. For example, 'Did you see the movie?'.

Front

What is the difference between 'did' and 'have' in questions?

Back

'Did' is used for simple past questions, while 'have' is used for present perfect questions. For example, 'Did you go?' vs 'Have you gone?'.

Front

What is the past participle?

Back

The past participle is the form of a verb used in perfect tenses and passive voice. For regular verbs, it typically ends in -ed (e.g., 'walked'). Irregular verbs have unique past participles (e.g., 'gone' for 'go').

Front

What is the structure of a negative sentence in the present perfect tense?

Back

The structure is 'subject + has/have + not + past participle'. For example, 'I have not finished my homework.'

Front

How do you ask about past actions?

Back

Use 'where', 'when', or 'what' followed by 'did' + subject + base form of the verb. For example, 'Where did you go last weekend?'.

Front

What is the role of 'were' in past tense questions?

Back

'Were' is the past tense form of 'to be' used with the second person (you) and plural subjects. For example, 'Where were you yesterday?'.

Front

What is the difference between 'have been' and 'were'?

Back

'Have been' is used in the present perfect tense to indicate an action that started in the past and continues to the present, while 'were' is used in the simple past tense to describe a completed action.