I help him with looking after his child.這句有錯嗎?

有錯
[with] is used before noun / pronoun
你可以話 "I help him with his homework"
但唔可以話 "help him with doing his homework"
所以你o既句子唔應該用[with]

I help him with looking after his child. 可改為:
I look after his child for him.
不過如果你一定要用[help], 都可以改成:
I help him (to) look after his child. *[to] 係可有可無

但你唔可以改成
I help him looking after his child.
不過有種習語係可以 help + verb(ing):
cannot help (doing) sth = cannot avoid/prevent sth

是否 I help him to look after his child 嗎?

I help him with looking after his child.是錯
I help him with look after his child.是對

有d唔妥
"I help him"之後唔應該用"with",用"by"會好d
建議:I help him by looking after his child

2006-11-25 21:29:37 補充：
唔知點解post出黎會怪怪地amendment:有d唔妥"I help him"之後唔應該用with,用by會好d建議:I help him by looking after his child

我認為應該係I help him to look after his child.

冇ar,一d都冇

無錯