Which is the best:
Will you come here again?
Yes, If mom would let me... (A)
We are sure that mum will let you goWill you come here again?
Yes, if mom will give me permission... (B)
We are sure your mom will let you goWill you come here again?
Yes, if mom lets me to go... (C)
We are sure your mom will let you go
or maybe other?