I can decorate you can decorate he can decorate we can decorate you can decorate they can decorate
V-ing form
I can be decorating you can be decorating he can be decorating we can be decorating you can be decorating they can be decorating
Perfect
I can have decorated you can have decorated he can have decorated we can have decorated you can have decorated they can have decorated
V-ing perfect
I can have been decorating you can have been decorating he can have been decorating we can have been decorating you can have been decorating they can have been decorating
Negation
Simple form
I cannot decorate you cannot decorate he cannot decorate we cannot decorate you cannot decorate they cannot decorate
V-ing form
I cannot be decorating you cannot be decorating he cannot be decorating we cannot be decorating you cannot be decorating they cannot be decorating
Perfect
I cannot have decorated you cannot have decorated he cannot have decorated we cannot have decorated you cannot have decorated they cannot have decorated
V-ing perfect
I cannot have been decorating you cannot have been decorating he cannot have been decorating we cannot have been decorating you cannot have been decorating they cannot have been decorating
Interrogative form
Simple form
can I decorate? can you decorate? can he decorate? can we decorate? can you decorate? can they decorate?
V-ing form
can I be decorating? can you be decorating? can he be decorating? can we be decorating? can you be decorating? can they be decorating?
Perfect
can I have decorated? can you have decorated? can he have decorated? can we have decorated? can you have decorated? can they have decorated?
V-ing perfect
can I have been decorating? can you have been decorating? can he have been decorating? can we have been decorating? can you have been decorating? can they have been decorating?
Interro-negative form
Simple form
can I not decorate? can you not decorate? can he not decorate? can we not decorate? can you not decorate? can they not decorate?
V-ing form
can I not be decorating? can you not be decorating? can he not be decorating? can we not be decorating? can you not be decorating? can they not be decorating?
Perfect
can I not have decorated? can you not have decorated? can he not have decorated? can we not have decorated? can you not have decorated? can they not have decorated?
V-ing perfect
can I not have been decorating? can you not have been decorating? can he not have been decorating? can we not have been decorating? can you not have been decorating? can they not have been decorating?