By Regards, Present perfect

Hello Clive, in your explanation, both of these sentences mean the same. So I have one question again. Is the Present Perfect commutable with the Present Perfect Progressive and reverse? Kind regards, Dany

I think 'Why?' is always the most difficult question, for anyone in general and often for native speakers of a language in particular. I wonder if some of the nuancing arises from the grammar. Let me outline how my thoughts are going. The present perfect 'Have you finished' seems politely to...

Dear Jim, Your posts are always very useful and informative. I knew the difference between Simple past and Present Perfect. But your bread-example made it very clear to me. You are really a great source of knowledge for me. I always learn many new things from your posts. Thanks a lot! Regards.

Could you please check the following sentences and correct them for me? Proofreading 1. He would tennis when he was a teenager and still plays now. 2. It's up to me I won't be denied, it's better to lose than never have tried to fight for love. (Does the preposition for mean here because of...