一、動詞不定式是“to+動詞原形”，其中的動詞後面不直接跟賓語。例如：
to come, to go, to live, ……
例句：He didn't want to come.
二、動詞不定式短語是“to+動詞原形+邏輯賓語/狀語…”。
例如：
to borrow my bike
to write a composition
to study hard
……
例句：
1.Alice came here to borrow my bike.
to borrow my bike是不定式短語作目的狀語。
2.I have no time to help you.
to help you是不定式短語作定語，修飾其前面的名詞。
3.The teachers often ask us to study hard.
to study hard是不定式短語作賓語補足語。
一、動詞不定式是“to+動詞原形”，其中的動詞後面不直接跟賓語。例如：
to come, to go, to live, ……
例句：He didn't want to come.
二、動詞不定式短語是“to+動詞原形+邏輯賓語/狀語…”。
例如：
to borrow my bike
to write a composition
to study hard
……
例句：
1.Alice came here to borrow my bike.
to borrow my bike是不定式短語作目的狀語。
2.I have no time to help you.
to help you是不定式短語作定語，修飾其前面的名詞。
3.The teachers often ask us to study hard.
to study hard是不定式短語作賓語補足語。