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1answer
179 views

A grammar rule (Present perfect)

Is this rule correct? when 'for' and 'since' are used in a sentence(in present perfect tense) to show duration of an action they imply that the action is still in progress. Without the 'for', the ...
-1
votes
2answers
2k views

What is the difference between has gone and went in this context? [duplicate]

A: Is Mr. Bob at home? B: Sorry, he isn't at home. He___to Hong Kong for vacation? A. went B. has gone C. is going Which one is correct answer? and why it is not the other ones?
4
votes
1answer
578 views

Present perfect continuous

Are the answers I chose correct. My choices are in bold. I have been pumping/I have pumped up three tyres. Would you like to do the forth? I have been greasing/I have greased my car. That's why my ...
3
votes
1answer
161 views

Usage of future perfect

I have a question about the usage of the future perfect thingy: I know that it is used to talk about a completed action before a time in future, but is it wrong to use just plain future simple in this ...
0
votes
2answers
586 views

Simple Past and Present Perfect [closed]

could you possibly enlighten me about any differences between 2 sentences below: (a) I went to Warsaw this year. (b) I have been to Warsaw this year. Thank you very much in advance!