what is my mistake in conversation game , please tell me.

(तुम यह साबित कैसे करोगे? How are you going to prove it? or How will you prove it?) both answers are correct or not? if both correct so explain it.

i am confuse dont and doesnt

list of verbs of all the forms

when 'shall' is used

what do you mean by groan

what is modals.

I have so many confusion in using do does words,

aj mere ghar mehman ayenge iska english kya hoga

i want say samething to my friend its wrong or right