有關英文文法問題想問問

Help（幫助）之後，應用「to+原形動詞」，而那to字往往略去。
所以你的句子是絕對正確

I hope I can help you understand it.

希望幫到你！

2014-06-18 16:39:12 補充：
順便一題，若句子是can't help則絕對可以用ing動詞（那時的意思是禁不住）

如：I can't help laughing（我禁不住笑）

"to help you solving" 是錯
help someone (to) do something ~ "to" 可有可無
但 make someone do something; let someone do something ~無 to

cannot help doing something
"cannot help" = 忍不住, 無法控制自己, 這 phrase 的 help 字, 不解"幫助"
認同 Julie, 多查字典, 字典有 phrase patterns 作參考, 教錯人不好

Julie, 好欣賞你咁坦白。

I am willing to help you solve the problems.

這句子文法絕對沒有錯誤。

"to help you solve" 絕對正確。

"help" 這個動詞是允許 不定式(infinitive) 作為其賓語(object)的補語(complement)。

"to help you to solve"
"to help you solve" (bared infinitive)
兩句也是對的。

反之，"to help you solving" 是不對的。 solving 前面要加個介詞 "in" 才對。

"to help you in solving"

2014-06-18 11:48:00 補充：
Jenkin, you have a good analytical mind and you are very creative as well.

Yet, grammar is something hard-coded.

2014-06-18 11:57:34 補充：
要學好英語，應實事求事，多查字典是非常重要的。

I am willing to help you to solve the problems.

to help
和
to solve
都是Sam所會willing(願意)去做的行動
所以都是to "action".

文法上有人可能會認為to help後便應該用solving the problem才對，solving the problem成為"名詞組"才是to help的整件事的意思，不過要考慮的是Sam的用意是否表示是他提供幫助help的主要意思是指solving the problem還是他同時表達幫助help是情感表達，加表示進行解決solve這亦是行動之一。

我認為從Sam主觀出發點講應該是to help you to solve the problem較為意思上合理些。

但是假如你是旁觀者記述Sam對Mary的回應，寫法則不同了，因為表達的角度不同了，你是表示Sam願意幫助Mary解決問問這行為，所以
Sam is willing to help Mary solving the problem.是一種表示客觀觀察的表述。
但一般英語人都會講述為
Sam is willing to help Mary to solve the problem.

I am willing
to help you(=Sam---->Mary)(prepositional phrase)
solve the problems=Participial used only adjectivally according to form
=solving the problems
=present participial qualifying "you"(=Mary)
This explanation gives an illustration of how words in Participial are used.