麻烦写下下面几个时态的被动语态形式，带个例句。

Question

如题所述

Answer 1

一般现在时：

Students
are
not
allowed
to
smoke.
一般过去式:
students
were
not
allowed
to
smoke
现在进行时

students
are
not
being
allowed
to
smoke
过去进行时students
were
not
being
allowed
to
smoke
过去将来时 students
would
not
be
allowed
to
smoke
现在完成时 students
have
not
been
allowed
to
smoke
过去完成时 students
had
not
been
allowed
to
smoke
含有情态动词must

students
must
not
be
allowed
to
smoke
含有情态动词can。students
can
not
beallowed
to
smoke