When the active verb is in the simple present tense, we make passive verb forms with is/am/are + past participle form of the verb. Note… Continue reading
Changing sentences in the simple present tense into passive
- 
Passives: some special points
-
Some verbs can be followed by two objects. The objects usually refer to a person (indirect object) and a thing (direct object). The indirect object… Continue reading
Time adverbs used with the present perfect tense
-
The present perfect tense is commonly used with the indefinite time adverbs never, ever, before, yet, already. Have you ever been to the USA? I… Continue reading
Present perfect continuous tense
-
Form: has / have + been + ing form of the verb Affirmative Question Negative I have been working. Have I been working? I have… Continue reading
Difference between present perfect and present perfect continuous tenses
-
The present perfect continuous tense is used to talk about a continuous, but not necessarily finished action or situation. The present perfect tense is used… Continue reading