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
Time adverbs used with the present perfect tense
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Present perfect continuous tense
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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
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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
Simple present and present perfect tense
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We have already learned that the simple present tense is used to talk about routines. The present perfect tense is used to talk about events… Continue reading
Auxiliary verbs exercise
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Complete the following sentences using appropriate auxiliary verbs. Answers I have to get up early on Sundays. You must not play with fire. In my… Continue reading