问句子中出现 on weekends , on weekend , on Sunday 分别用什么时态

on weekends 意思是在每周末,这个是陈述的一般情况,所以用一般现在时.
例：Usually I go shopping and play basketball on weekends.
最后两个要看具体用在什么情况下,有时用过去式,过去完成时,有时用将来时,但是on weekend 好像不常用,常用的是in the weekend,比如：
The teacher didn't blame him for what he did in the weekend/on Sunday.(过去式--What he did in the weekend.)
The teacher didn't blame what he had done in the weekend /on Sunday(过去将来时)
The techer won't blame him for what he will do in the weekend/on Sunday (将来时)
希望我的回答能够帮助你,谢谢采纳!

on weekends表示每逢周末。on Sundays是表示每逢周日.on weekend 周末.
可以用不同时态。last year.we went to the cinema on weekends/on Sundays
去年我们每到周末就却看电影
we go to the cin...

第一个和最后一个用一般现在时
on weekend 用过去式