can guard
Regular verb: guard - guarded- guarded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can guard
you can guard
she can guard
we can guard
you can guard
they can guard 	I can be guarding
you can be guarding
she can be guarding
we can be guarding
you can be guarding
they can be guarding	I can have guarded
you can have guarded
she can have guarded
we can have guarded
you can have guarded
they can have guarded	I can have been guarding
you can have been guarding
she can have been guarding
we can have been guarding
you can have been guarding
they can have been guarding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't guard
you can't guard
she can't guard
we can't guard
you can't guard
they can't guard 	I can't be guarding
you can't be guarding
she can't be guarding
we can't be guarding
you can't be guarding
they can't be guarding	I can't have guarded
you can't have guarded
she can't have guarded
we can't have guarded
you can't have guarded
they can't have guarded	I can't have been guarding
you can't have been guarding
she can't have been guarding
we can't have been guarding
you can't have been guarding
they can't have been guarding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I guard?
can you guard?
can she guard?
can we guard?
can you guard?
can they guard? 	can I be guarding?
can you be guarding?
can she be guarding?
can we be guarding?
can you be guarding?
can they be guarding? 	can I have guarded?
can you have guarded?
can she have guarded?
can we have guarded?
can you have guarded?
can they have guarded? 	can I have been guarding?
can you have been guarding?
can she have been guarding?
can we have been guarding?
can you have been guarding?
can they have been guarding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I guard?
can't you guard?
can't she guard?
can't we guard?
can't you guard?
can't they guard? 	can't I be guarding?
can't you be guarding?
can't she be guarding?
can't we be guarding?
can't you be guarding?
can't they be guarding? 	can't I have guarded?
can't you have guarded?
can't she have guarded?
can't we have guarded?
can't you have guarded?
can't they have guarded? 	can't I have been guarding?
can't you have been guarding?
can't she have been guarding?
can't we have been guarding?
can't you have been guarding?
can't they have been guarding?