If we stay alone at home and feel so hungry,we can cook by ourselves.这句用了什么语法?

问题描述:

If we stay alone at home and feel so hungry,we can cook by ourselves.这句用了什么语法?
如果有语法错误也请帮忙指出,
速求.

由if引导的条件状语从句,feel so hungry要改成feel very hungry,stay alone at home 要改成stay at home alone .