I can store you can store she can store we can store you can store they can store
V-ing form
I can be storing you can be storing she can be storing we can be storing you can be storing they can be storing
Perfect
I can have stored you can have stored she can have stored we can have stored you can have stored they can have stored
V-ing perfect
I can have been storing you can have been storing she can have been storing we can have been storing you can have been storing they can have been storing
Negation
Simple form
I cannot store you cannot store she cannot store we cannot store you cannot store they cannot store
V-ing form
I cannot be storing you cannot be storing she cannot be storing we cannot be storing you cannot be storing they cannot be storing
Perfect
I cannot have stored you cannot have stored she cannot have stored we cannot have stored you cannot have stored they cannot have stored
V-ing perfect
I cannot have been storing you cannot have been storing she cannot have been storing we cannot have been storing you cannot have been storing they cannot have been storing
Interrogative form
Simple form
can I store? can you store? can she store? can we store? can you store? can they store?
V-ing form
can I be storing? can you be storing? can she be storing? can we be storing? can you be storing? can they be storing?
Perfect
can I have stored? can you have stored? can she have stored? can we have stored? can you have stored? can they have stored?
V-ing perfect
can I have been storing? can you have been storing? can she have been storing? can we have been storing? can you have been storing? can they have been storing?
Interro-negative form
Simple form
can I not store? can you not store? can she not store? can we not store? can you not store? can they not store?
V-ing form
can I not be storing? can you not be storing? can she not be storing? can we not be storing? can you not be storing? can they not be storing?
Perfect
can I not have stored? can you not have stored? can she not have stored? can we not have stored? can you not have stored? can they not have stored?
V-ing perfect
can I not have been storing? can you not have been storing? can she not have been storing? can we not have been storing? can you not have been storing? can they not have been storing?