In Present perfect^x, Perfect progressive^x, Present progressive^x

Hi,I was told that a present or past progressive tense like "is sleeping" or "was sleeping" denotes a temporary action or activity and the present perfect or past perfect progressive is used to indicate duration.I don't understand why a present progressive is one that...

Hi everybody,Why do all the Grammar books use the expressions "simple present" and "simple past", although all the other tenses start with the tense-marker and add the aspect-marker then: present progressive, present perfect, present perfect progressive, past progressive, past...

Here are some Present - Past pairs:Simple present - Simple past (Future of the Past -- (with would)-- is also called "Conditional".)(Progressive is also called Continuous.) Caution: Not all discussions of tense use the same names for the tenses. CJ

Hi Viceidol,Thus far we have examples of three tenses: simple present, present progressive, and present perfect progressive. As Philip says, the present progressive seems awkward with "I am wanting." I don't know if it's considered incorrect. The other two seem fine,...

She is eating dinner for one hour. / She has been eating dinner for one hour. He is watching TV all day. / He has been watching TV all day. ------------------------------------------------------------------------------------------------------------------------ Actually, these two cases are...

She is eating dinner for one hour. / She has been eating dinner for one hour.He is watching TV all day. / He has been watching TV all day. It is raining outside. / It has been raining outside. What are you talking about? / What have you been talking about? You can't specify a period...

I'm not questioning about 'Present Perfect VS Present Perfect Progressive'. Please, let me know the difference of 'Present Progressive and Present Perfect Progressive'. For example, She is eating dinner for one hour. / She has been eating dinner for one hour. It is...

I would like to share my 2-cent worth with you all. There are two parts to the question: a) the usage of the present progressive tense and b) the usage of the present perfect vs. that of the present perfect progressive. In general, the progressive form (i.e., -ing form of the base verb) is...

Mister Micawber: «In the first case, you are finished thinking; in the second case, you are not.» If to take possible contexts into consideration, I disagree: Past Simple, but he's still thinking (at the moment of speech): 1. I can't solve this problem! I was thinking yesterday at...

Hi, Present perfect is 'I have waited in the mall'. Present perfect progressive is 'I have been waiting in the mall'. You need to revise your explanation. Then post it here again, if you want to. Best wishes, Clive