I can retry you can retry he can retry we can retry you can retry they can retry
V-ing form
I can be retrying you can be retrying he can be retrying we can be retrying you can be retrying they can be retrying
Perfect
I can have retried you can have retried he can have retried we can have retried you can have retried they can have retried
V-ing perfect
I can have been retrying you can have been retrying he can have been retrying we can have been retrying you can have been retrying they can have been retrying
Negation
Simple form
I cannot retry you cannot retry he cannot retry we cannot retry you cannot retry they cannot retry
V-ing form
I cannot be retrying you cannot be retrying he cannot be retrying we cannot be retrying you cannot be retrying they cannot be retrying
Perfect
I cannot have retried you cannot have retried he cannot have retried we cannot have retried you cannot have retried they cannot have retried
V-ing perfect
I cannot have been retrying you cannot have been retrying he cannot have been retrying we cannot have been retrying you cannot have been retrying they cannot have been retrying
Interrogative form
Simple form
can I retry? can you retry? can he retry? can we retry? can you retry? can they retry?
V-ing form
can I be retrying? can you be retrying? can he be retrying? can we be retrying? can you be retrying? can they be retrying?
Perfect
can I have retried? can you have retried? can he have retried? can we have retried? can you have retried? can they have retried?
V-ing perfect
can I have been retrying? can you have been retrying? can he have been retrying? can we have been retrying? can you have been retrying? can they have been retrying?
Interro-negative form
Simple form
can I not retry? can you not retry? can he not retry? can we not retry? can you not retry? can they not retry?
V-ing form
can I not be retrying? can you not be retrying? can he not be retrying? can we not be retrying? can you not be retrying? can they not be retrying?
Perfect
can I not have retried? can you not have retried? can he not have retried? can we not have retried? can you not have retried? can they not have retried?
V-ing perfect
can I not have been retrying? can you not have been retrying? can he not have been retrying? can we not have been retrying? can you not have been retrying? can they not have been retrying?