I can handwash you can handwash she can handwash we can handwash you can handwash they can handwash
V-ing form
I can be handwashing you can be handwashing she can be handwashing we can be handwashing you can be handwashing they can be handwashing
Perfect
I can have handwashed you can have handwashed she can have handwashed we can have handwashed you can have handwashed they can have handwashed
V-ing perfect
I can have been handwashing you can have been handwashing she can have been handwashing we can have been handwashing you can have been handwashing they can have been handwashing
Negation
Simple form
I cannot handwash you cannot handwash she cannot handwash we cannot handwash you cannot handwash they cannot handwash
V-ing form
I cannot be handwashing you cannot be handwashing she cannot be handwashing we cannot be handwashing you cannot be handwashing they cannot be handwashing
Perfect
I cannot have handwashed you cannot have handwashed she cannot have handwashed we cannot have handwashed you cannot have handwashed they cannot have handwashed
V-ing perfect
I cannot have been handwashing you cannot have been handwashing she cannot have been handwashing we cannot have been handwashing you cannot have been handwashing they cannot have been handwashing
Interrogative form
Simple form
can I handwash? can you handwash? can she handwash? can we handwash? can you handwash? can they handwash?
V-ing form
can I be handwashing? can you be handwashing? can she be handwashing? can we be handwashing? can you be handwashing? can they be handwashing?
Perfect
can I have handwashed? can you have handwashed? can she have handwashed? can we have handwashed? can you have handwashed? can they have handwashed?
V-ing perfect
can I have been handwashing? can you have been handwashing? can she have been handwashing? can we have been handwashing? can you have been handwashing? can they have been handwashing?
Interro-negative form
Simple form
can I not handwash? can you not handwash? can she not handwash? can we not handwash? can you not handwash? can they not handwash?
V-ing form
can I not be handwashing? can you not be handwashing? can she not be handwashing? can we not be handwashing? can you not be handwashing? can they not be handwashing?
Perfect
can I not have handwashed? can you not have handwashed? can she not have handwashed? can we not have handwashed? can you not have handwashed? can they not have handwashed?
V-ing perfect
can I not have been handwashing? can you not have been handwashing? can she not have been handwashing? can we not have been handwashing? can you not have been handwashing? can they not have been handwashing?