1. Only (D) is possible: His grandpa has been dead for ten years. (A) is impossible because we cannot use present perfect with a specific time reference. (B) is gramatically possible but makes no sense unless after 10 years the grandfather was

Hi Active sentence: Somebody stole my bicycle. Passive sentence: My bicycle has been stolen. Is the passive sentence OK, in your opinion? I would write: My bicycle was (simple past) stolen. As far as I know if the active sentence is

Hi Musesun "This forbidden to make money in the university" is not a correct sentence. The word "forbidden" is not a tense at all -- it is just the past participle (V3) of the verb 'forbid'. You can say "This is forbidden", but you cannot say

Mister Micawber wrote: Future Simple (I will sit) Future Continuous/Progressive (I will be sitting) Future Perfect (I will have sat") Present Simple (I sit) Past Simple (I sat) Past Continuous/Progressive (I was sitting) Past Perfect (I had sat)