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 can't handwash you can't handwash she can't handwash we can't handwash you can't handwash they can't handwash
V-ing form
I can't be handwashing you can't be handwashing she can't be handwashing we can't be handwashing you can't be handwashing they can't be handwashing
Perfect
I can't have handwashed you can't have handwashed she can't have handwashed we can't have handwashed you can't have handwashed they can't have handwashed
V-ing perfect
I can't have been handwashing you can't have been handwashing she can't have been handwashing we can't have been handwashing you can't have been handwashing they can't 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't I handwash? can't you handwash? can't she handwash? can't we handwash? can't you handwash? can't they handwash?
V-ing form
can't I be handwashing? can't you be handwashing? can't she be handwashing? can't we be handwashing? can't you be handwashing? can't they be handwashing?
Perfect
can't I have handwashed? can't you have handwashed? can't she have handwashed? can't we have handwashed? can't you have handwashed? can't they have handwashed?
V-ing perfect
can't I have been handwashing? can't you have been handwashing? can't she have been handwashing? can't we have been handwashing? can't you have been handwashing? can't they have been handwashing?