Mujhe ek kalam chahiye.

Now I am going to cut the cake

i am going to Mumbai now

i don't understand between who and whom

why the second form of go used as went in present perfect tense where it also used in past indefinite....?

difference between past indefinite and present perfect tense

Want is used for past tense but in question is present tense used.

exam ki taiyari kaisi chal rhi hai

Aur aapki classes kaisi chal rhi hai.. Convert this into English please

aap ki trip kaisi rhi