what is the difference what is the difference among these words. 1 cost 2 expense 3 expenditure. Thanks in advance.

Gerund and infinitives please discuss or put link for best explanation of Gerund and infinitives. Thanks.

Subjunctive and conditional sentences I want to know what are subjunctive and conditional sentences. A bundle of thanks in advance.

what do these mean? 1.If I say to someone that he doesn't look so well and he replies " ya tell me about it" what does he really mean? 2." you can say it again". Well I don't remember how it was used, but if any one knows about this expression please explain. Thanks in advance.

Are these correct? 1. The doctor(leave)........the village when she(collect).........enough data. 2. What? He got married again? At this rate, he(have).........a dozen wives, bye the time he dies. 3. Her face(be).......smile wrinkles. 4. The patient had died before the doctor(come)......... ANSWERS: 1.(had left) (collected) if "doctor" and "she" are different subjects. (left) (had collected) if "she" is working as pronoun of "doctor' 2.(will have had) 3 ( ? ) 4 ( ? ) Thanks.

Meaning of sentence When you finish your work, do you want to go downtown? Does it refer to future time? Does it refer to my daily routine? Or can it be used in both cases? Thanks in advance.

Grammar exercise. Please point out the errors and write the correct one with reason if possible. Thanks in advance. 1. My friend will meet me when I will arrive at the airport. 2. I am living at 3371 grand avenue since last September. 3. My country have change its capital city five time. 4. The phone rung while I doing the dishes. I dry my hands and answer it. When I am hear my husband voice, I very happy. 5.I will intend to go back home when I will get my Master's degree. 6. I am in the United States for the last four months. During this time, I had done many things and saw may place. 7. When the old man started to walk back to his cave, the sun has already hide itself behind the mountain. 8. My life in this country is changing a great deal since I arrive here six month ago. 9. When I went to the orientation meeting, I have met many of the another students. 10. While i am writing my composition last night, someone knock on the door.Please check whether these are correct or not. Thanks. 1. My friend will meet me when I arrive at the airport. 2. I have been living at 3371 grand avenue since last September. 3. My country has changed its capital city five times. 4. The phone rang while I was doing the dishes. I dried my hands and answered it. When I heard my husband voice, I became very happy. 5.I intend to go back home when I get my Master's degree. 6. I have been in the United States for the last four months. During this time, I did many things and saw may place. 7. When the old man started to walk back to his cave, the sun has already hidden itself behind the mountain. 8. My life in this country has been changing a great deal since I arrived here six month ago. 9. When I went to the orientation meeting, I met many of the another students. 10. While I was writing my composition last night, someone knocked on the door.

Usages of comma (,) while writing. Please let us know about all the usages of comma that you know. Its practical use in paragraph would be appreciated.

Usages of comma (,) while writing.

Let us know about all the usages of comma which you know. And its prectical usage in a paragraph would be appreciated.

Thanks.