English verb conjugation
CAN OUTBOX

Regular verb: outbox - outboxed - outboxed

Affirmation

Simple form	V-ing form
I can outbox you can outbox he can outbox we can outbox you can outbox they can outbox	I can be outboxing you can be outboxing he can be outboxing we can be outboxing you can be outboxing they can be outboxing
Perfect	V-ing perfect
I can have outboxed you can have outboxed he can have outboxed we can have outboxed you can have outboxed they can have outboxed	I can have been outboxing you can have been outboxing he can have been outboxing we can have been outboxing you can have been outboxing they can have been outboxing

Negation

Simple form	V-ing form
I cannot outbox you cannot outbox he cannot outbox we cannot outbox you cannot outbox they cannot outbox	I cannot be outboxing you cannot be outboxing he cannot be outboxing we cannot be outboxing you cannot be outboxing they cannot be outboxing
Perfect	V-ing perfect
I cannot have outboxed you cannot have outboxed he cannot have outboxed we cannot have outboxed you cannot have outboxed they cannot have outboxed	I cannot have been outboxing you cannot have been outboxing he cannot have been outboxing we cannot have been outboxing you cannot have been outboxing they cannot have been outboxing

Interrogative form

Simple form	V-ing form
can I outbox? can you outbox? can he outbox? can we outbox? can you outbox? can they outbox?	can I be outboxing? can you be outboxing? can he be outboxing? can we be outboxing? can you be outboxing? can they be outboxing?
Perfect	V-ing perfect
can I have outboxed? can you have outboxed? can he have outboxed? can we have outboxed? can you have outboxed? can they have outboxed?	can I have been outboxing? can you have been outboxing? can he have been outboxing? can we have been outboxing? can you have been outboxing? can they have been outboxing?

Interro-negative form

Simple form	V-ing form
can I not outbox? can you not outbox? can he not outbox? can we not outbox? can you not outbox? can they not outbox?	can I not be outboxing? can you not be outboxing? can he not be outboxing? can we not be outboxing? can you not be outboxing? can they not be outboxing?
Perfect	V-ing perfect
can I not have outboxed? can you not have outboxed? can he not have outboxed? can we not have outboxed? can you not have outboxed? can they not have outboxed?	can I not have been outboxing? can you not have been outboxing? can he not have been outboxing? can we not have been outboxing? can you not have been outboxing? can they not have been outboxing?