I help my mother to do housework.
我帮妈妈做家务。
He helps me to learn English
他帮我学习英语。

help to do sth
就是帮助搜趣网做某事.比如：
I heip to do the housework. 我帮着做家务.
help doing sth
通常用于 can't help doing sth.
意思是禁不住做某事
比如： I can't help eating more.我禁不住吃很多.

I help my mother to do housework.
help的用法：
可以是help sb do sth搜趣网 也可以是help sb to do sth。这里的to可以省略。
希望我的答案对你有帮助

I help the teacher 搜趣网clean the classroom.
我帮助老师打扫教室.

if you have time,please help me water the flowers.
though i am willing to hendBqYsEEglp you handle the problem,i don't know how to do it.