I can whitewash you can whitewash he can whitewash we can whitewash you can whitewash they can whitewash
V-ing form
I can be whitewashing you can be whitewashing he can be whitewashing we can be whitewashing you can be whitewashing they can be whitewashing
Perfect
I can have whitewashed you can have whitewashed he can have whitewashed we can have whitewashed you can have whitewashed they can have whitewashed
V-ing perfect
I can have been whitewashing you can have been whitewashing he can have been whitewashing we can have been whitewashing you can have been whitewashing they can have been whitewashing
Negation
Simple form
I can't whitewash you can't whitewash he can't whitewash we can't whitewash you can't whitewash they can't whitewash
V-ing form
I can't be whitewashing you can't be whitewashing he can't be whitewashing we can't be whitewashing you can't be whitewashing they can't be whitewashing
Perfect
I can't have whitewashed you can't have whitewashed he can't have whitewashed we can't have whitewashed you can't have whitewashed they can't have whitewashed
V-ing perfect
I can't have been whitewashing you can't have been whitewashing he can't have been whitewashing we can't have been whitewashing you can't have been whitewashing they can't have been whitewashing
Interrogative form
Simple form
can I whitewash? can you whitewash? can he whitewash? can we whitewash? can you whitewash? can they whitewash?
V-ing form
can I be whitewashing? can you be whitewashing? can he be whitewashing? can we be whitewashing? can you be whitewashing? can they be whitewashing?
Perfect
can I have whitewashed? can you have whitewashed? can he have whitewashed? can we have whitewashed? can you have whitewashed? can they have whitewashed?
V-ing perfect
can I have been whitewashing? can you have been whitewashing? can he have been whitewashing? can we have been whitewashing? can you have been whitewashing? can they have been whitewashing?
Interro-negative form
Simple form
can't I whitewash? can't you whitewash? can't he whitewash? can't we whitewash? can't you whitewash? can't they whitewash?
V-ing form
can't I be whitewashing? can't you be whitewashing? can't he be whitewashing? can't we be whitewashing? can't you be whitewashing? can't they be whitewashing?
Perfect
can't I have whitewashed? can't you have whitewashed? can't he have whitewashed? can't we have whitewashed? can't you have whitewashed? can't they have whitewashed?
V-ing perfect
can't I have been whitewashing? can't you have been whitewashing? can't he have been whitewashing? can't we have been whitewashing? can't you have been whitewashing? can't they have been whitewashing?