bear infinitive: use it after 'to'eg. I like to swim.past tense: use it when talking about the pasteg. I ate my breakfast already.future tense: use it when you talk about the futureeg. I wi...
什么时候用原型什么时候用过去式将来式现在进行式
bear infinitive: use it after 'to'eg. I like to swim.past tense: use it when talking about the pasteg. I ate my breakfast already.future tense: use it when you talk about the futureeg. I wi...