Saadaq122  +  56234 Fri, 19 Nov 04 08:22 PM Thanks to those who gave us this chance of adication . Now Iam Asking you respectively To reply for me and to expalain for me The diffrences between these words thank You very much . Saadaq122 Joined on Sun, Sep 12 2004 New Member 01

	CalifJim  +  56311 Sat, 20 Nov 04 07:46 AM Welcome to EnglishForums. Unfortunately, your request is too broad to answer in a forum post. These kinds of expressions have many meanings and many uses. They deal with necessity, possibility, ability, advisability, probability, permission, obligation, willingness, refusal, futurity, and on and on! Many books have been written on the subject of English modals. I recommend using the Internet to locate a few books on the subject of modal verbs in English. You might also try a library. It won't be possible to learn all of their uses all at once. It will take quite a long time to master them, so you will need to be patient. That said, here's a few basic facts: The modals are: will, would, shall, should, can, could, may, might, and must. They never change the way other verbs do. They don't add "s" or "ed". They are followed by a bare infinitive or by "have" and a past participle. CalifJim CalifJim Joined on Mon, Aug 2 2004 California Veteran Member 22,128 "There are no facts, only interpretations" - Nietzsche Verbs, Modals, Modal Verbs

	alinahertea  +  69964 Tue, 25 Jan 05 03:50 PM he may come - he is allowed to come he may have come - he... he would come - it is possible that he will come he would have come - he wanted to come, but.... he might come - it's possible for him to come he could come - alinahertea Joined on Tue, Jan 25 2005 New Member 01

	CalifJim  +  76853 Sat, 26 Feb 05 04:36 PM Guest, There is no one right answer to this question. In my opinion, the most important difference is that "can" is rarely followed by "have" + past participle while "could" regularly does so. Also, in a main clause, "can" can give permission while "could" cannot. You can go now. (This can be used to mean "You are permitted to go now".) You could go now. (This can be used to mean "One of your alternatives is to go now".) There may be many more answers from different posters. CJ CalifJim Clauses