All English tences —还有要补充

All English tences —还有要补充 All English tences —还有要补充 iAll English tences —还有要补充

一、present simple 

definition：a fact ，habit or a regular action：

All English tences —还有要补充

二、present perfect continues

All English tences —还有要补充

三、present perfect

All English tences —还有要补充