英语中,不规则动词"come"的完成形式是"have/has + come",用于表达一个动作已经完成的事实。然而,当"come"用作形容词,表示“到来的”或“现有的”等含义时,其完成形式则是"been"来构成的。理解"come"的完成形式对于掌握英语语法和表达能力至关重要。
例如:
- I have come to realize that English is a difficult language to master.
- She has come a long way since she first started studying English.
- They have come up with a new method for teaching grammar.
在以上这些句子中,come都被用作动词的主要动作,而have/has则表示完成的状态。通过这种方式,我们可以形成一个完整的句子,来表达一个动作已经完成的事实。
需要注意的是,有时候come也可以用作形容词,表示“到来的”或“现有的”等含义。在这种情况下,come的完成形式则是been来构成的。
例如:
- The guests have been coming and going all day.
- The company has been experiencing some financial difficulties in recent months.