Promise to do something，Promise not to do something，承諾做某事，承諾不做某事，Promise後面接不定式，例如，My brother promised my mother not to copy others’ homework anymore.我弟弟向我媽媽承諾，再也不抄別人的作業了。

I promise to work harder next term，我承諾下個學期要更加努力學習。

1.You promise not to smoke. 你答應不吸菸了。

2.He promised not to be late again. 他承諾不再遲到了。

3.i promise not to pollute the environment.我保證不再汙染環境了。

4.If you promise to do something, you must not break your promise.

如果你承諾了什麼，就不要食言。

1.All the people must make promises to work toward one of the foundation's goals.

2.He made a promise to study hard. 他做了一個決定去認真學習。

3.You need to be careful not to make promises that you can't fulfill. 要重視承諾,不要做出你無法兌現的承諾。