I can stonewash you can stonewash he can stonewash we can stonewash you can stonewash they can stonewash
V-ing form
I can be stonewashing you can be stonewashing he can be stonewashing we can be stonewashing you can be stonewashing they can be stonewashing
Perfect
I can have stonewashed you can have stonewashed he can have stonewashed we can have stonewashed you can have stonewashed they can have stonewashed
V-ing perfect
I can have been stonewashing you can have been stonewashing he can have been stonewashing we can have been stonewashing you can have been stonewashing they can have been stonewashing
Negation
Simple form
I cannot stonewash you cannot stonewash he cannot stonewash we cannot stonewash you cannot stonewash they cannot stonewash
V-ing form
I cannot be stonewashing you cannot be stonewashing he cannot be stonewashing we cannot be stonewashing you cannot be stonewashing they cannot be stonewashing
Perfect
I cannot have stonewashed you cannot have stonewashed he cannot have stonewashed we cannot have stonewashed you cannot have stonewashed they cannot have stonewashed
V-ing perfect
I cannot have been stonewashing you cannot have been stonewashing he cannot have been stonewashing we cannot have been stonewashing you cannot have been stonewashing they cannot have been stonewashing
Interrogative form
Simple form
can I stonewash? can you stonewash? can he stonewash? can we stonewash? can you stonewash? can they stonewash?
V-ing form
can I be stonewashing? can you be stonewashing? can he be stonewashing? can we be stonewashing? can you be stonewashing? can they be stonewashing?
Perfect
can I have stonewashed? can you have stonewashed? can he have stonewashed? can we have stonewashed? can you have stonewashed? can they have stonewashed?
V-ing perfect
can I have been stonewashing? can you have been stonewashing? can he have been stonewashing? can we have been stonewashing? can you have been stonewashing? can they have been stonewashing?
Interro-negative form
Simple form
can I not stonewash? can you not stonewash? can he not stonewash? can we not stonewash? can you not stonewash? can they not stonewash?
V-ing form
can I not be stonewashing? can you not be stonewashing? can he not be stonewashing? can we not be stonewashing? can you not be stonewashing? can they not be stonewashing?
Perfect
can I not have stonewashed? can you not have stonewashed? can he not have stonewashed? can we not have stonewashed? can you not have stonewashed? can they not have stonewashed?
V-ing perfect
can I not have been stonewashing? can you not have been stonewashing? can he not have been stonewashing? can we not have been stonewashing? can you not have been stonewashing? can they not have been stonewashing?