please tell me when may can,and could are used. all three of them are used for requesting and asking or something but i dont know their correct usage...
The word can means having the ability to do something.
I can run a mile in four minutes.
I can speak English.
The word may means being permitted to do something.
May I leave the table, please.
I may visit the hospital if my mother lets me.
The word could is used as the past tense of "can"
My mother did the best she could for my brother and me.
She could perform on the trapeze.
His feet were so swollen that he could hardly walk.
We were so tired we couldn't stay awake.
hey, i asked when "could" can" and may" can be used in interrogative sentences? like could i do this? or can i do this? may i go? can i go? could you give me favor or can u give me favor?
OK, let's try to clear up this issue!
Examples of interrogative sentences using could, can, and may:
* Can you swim? (Do you have the ability to swim?)
* May I ride your horse? (I am seeking your permission to ride the horse.)
* Could you perform that scene as well as the actor performed it? (Do you have the ability to perform?