the boy does not often play football.the boy does not often play football.（just now）改为过去式there is not a pen on the desk…（a month ago）改为过去式
问题描述：
the boy does not often play football.
the boy does not often play football.
（just now）改为过去式
there is not a pen on the desk…
（a month ago）改为过去式
答
the boy did not often play football.
lz在纠结这个often 吗？没事的，过去式也可以用。
there was not a pen on the desk…
改谓语就好了。
答
The boy didn't play football just now.
那个男孩儿刚刚没有踢足球.
、There was not a pen on the desk a moth ago.