I'll is the short form of I will or I shall. You use it when you talk about a future action, a promise, or a decision: “I'll help.” In speaking, I'll is the normal form; saying “I will” every time can sound slow, or extra strong when you stress will (“I will do it”). I shall is older and more British, and many speakers now use I will for all persons; I'll covers both.

I'll is the short form of I will or I shall I'll是I will或I shall的縮寫。You use it你會用它 when you talk about a future action, a promise, or a decision講未來的動作、承諾，或決定時："I'll help."「I'll help.」（我會幫忙。）In speaking, I'll is the normal form在口語裡，I'll是正常的說法；saying "I will" every time can sound slow每次都說「I will」聽起來可能會慢半拍，or extra strong when you stress will或者當你重讀will時聽起來特別強烈 ("I will do it")像「I will do it」（我一定會做）。I shall is older and more British I shall比較古老、比較英式，and many speakers now use I will for all persons現在很多人各種人稱都用I will；I'll covers both I'll兩種都涵蓋。

The apostrophe shows that letters have been dropped.

The apostrophe shows撇號顯示出 that letters have been dropped有字母被省略掉了。

I'll is perfect for conversation, messages, and stories. In very formal school essays or official letters, some teachers prefer I will.

I'll is perfect for conversation, messages, and stories I'll很適合用在對話、訊息，和故事裡。In very formal school essays or official letters在非常正式的學校作文或公文裡，some teachers prefer I will有些老師比較喜歡I will。

Though actually, I'll is not past tense, and it is not the word ill (sick).

Though actually不過事實上，I'll is not past tense I'll不是過去式，and it is not the word ill (sick)也不是ill（生病）這個字。