3.you may be use my pen 4we should wash our hands before each meal各位被动语态

3.you may be use my pen 4we should wash our hands before each meal各位被动语态
3.you may be use my pen 4we should wash our hands before each meal
各位被动语态

3.you may be use my pen 4we should wash our hands before each meal各位被动语态
My pen may be used(by you)
our hands should be washed before each meal

my pen may be used by you.
our hands should be washed before each meal.

3.my pen may be used by you
4.our hands should be washed before each meal

my pen may be used by you
our hands should be washed before each meal

My pen can be used(by you).一般都不会要括号里的。第二句是Our hands should be washed before each meal.