butalso后能否加toWeneednotonlytolistentowhathesays,butalsotowatchwhathedoes.Weneednotonlytolistentowhathesays,butalsowatchwhathedoes.哪个对?PS：notonly不放在need之前不是要求前后对等吗?

Question

but also后能否 加to
We need not only to listen to what he says ,but also to watch what he does.
We need not only to listen to what he says ,but also watch what he does.
哪个对?
PS：not only 不放在need 之前
不是要求前后对等吗?

Answer 1

不是要求前后对等吗?
是的
所以我选择
We need not only to listen to what he says ,but also to watch what he does.