I should be very grateful whether you could send me more inf

I should be very grateful whether you could send me more inf I would be very grateful if you could send me the invation l If he ( )help me,I should be very grateful to you.为什么只能填shou If you can help me,i will be grateful.If you could help me,i I would be grateful if you could give me some advice If you could give me some advice I would be grateful. I would be much grateful if you could help me seek out a gir 21.If you _______ me,I shall be very grateful to you. should 的用法I should be obliged if you would send them to me.i If you ___ (can) help me,I would be grateful. I am very grateful to you for what you've given me and ( ) y I am very grateful to you for what you've given me and_____