can outbox
Regular verb: outbox - outboxed- outboxed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?