can blub
Regular verb: blub - blubed- blubed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can blub
you can blub
he can blub
we can blub
you can blub
they can blub 	I can be blubing
you can be blubing
he can be blubing
we can be blubing
you can be blubing
they can be blubing	I can have blubed
you can have blubed
he can have blubed
we can have blubed
you can have blubed
they can have blubed	I can have been blubing
you can have been blubing
he can have been blubing
we can have been blubing
you can have been blubing
they can have been blubing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot blub
you cannot blub
he cannot blub
we cannot blub
you cannot blub
they cannot blub 	I cannot be blubing
you cannot be blubing
he cannot be blubing
we cannot be blubing
you cannot be blubing
they cannot be blubing	I cannot have blubed
you cannot have blubed
he cannot have blubed
we cannot have blubed
you cannot have blubed
they cannot have blubed	I cannot have been blubing
you cannot have been blubing
he cannot have been blubing
we cannot have been blubing
you cannot have been blubing
they cannot have been blubing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I blub?
can you blub?
can he blub?
can we blub?
can you blub?
can they blub? 	can I be blubing?
can you be blubing?
can he be blubing?
can we be blubing?
can you be blubing?
can they be blubing? 	can I have blubed?
can you have blubed?
can he have blubed?
can we have blubed?
can you have blubed?
can they have blubed? 	can I have been blubing?
can you have been blubing?
can he have been blubing?
can we have been blubing?
can you have been blubing?
can they have been blubing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not blub?
can you not blub?
can he not blub?
can we not blub?
can you not blub?
can they not blub? 	can I not be blubing?
can you not be blubing?
can he not be blubing?
can we not be blubing?
can you not be blubing?
can they not be blubing? 	can I not have blubed?
can you not have blubed?
can he not have blubed?
can we not have blubed?
can you not have blubed?
can they not have blubed? 	can I not have been blubing?
can you not have been blubing?
can he not have been blubing?
can we not have been blubing?
can you not have been blubing?
can they not have been blubing?