can tub tub
Regular verb: tub tub - tub tubed- tub tubed

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can tub tub
you can tub tub
she can tub tub
we can tub tub
you can tub tub
they can tub tub 	I can be tub tubing
you can be tub tubing
she can be tub tubing
we can be tub tubing
you can be tub tubing
they can be tub tubing	I can have tub tubed
you can have tub tubed
she can have tub tubed
we can have tub tubed
you can have tub tubed
they can have tub tubed	I can have been tub tubing
you can have been tub tubing
she can have been tub tubing
we can have been tub tubing
you can have been tub tubing
they can have been tub tubing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot tub tub
you cannot tub tub
she cannot tub tub
we cannot tub tub
you cannot tub tub
they cannot tub tub 	I cannot be tub tubing
you cannot be tub tubing
she cannot be tub tubing
we cannot be tub tubing
you cannot be tub tubing
they cannot be tub tubing	I cannot have tub tubed
you cannot have tub tubed
she cannot have tub tubed
we cannot have tub tubed
you cannot have tub tubed
they cannot have tub tubed	I cannot have been tub tubing
you cannot have been tub tubing
she cannot have been tub tubing
we cannot have been tub tubing
you cannot have been tub tubing
they cannot have been tub tubing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I tub tub?
can you tub tub?
can she tub tub?
can we tub tub?
can you tub tub?
can they tub tub? 	can I be tub tubing?
can you be tub tubing?
can she be tub tubing?
can we be tub tubing?
can you be tub tubing?
can they be tub tubing? 	can I have tub tubed?
can you have tub tubed?
can she have tub tubed?
can we have tub tubed?
can you have tub tubed?
can they have tub tubed? 	can I have been tub tubing?
can you have been tub tubing?
can she have been tub tubing?
can we have been tub tubing?
can you have been tub tubing?
can they have been tub tubing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not tub tub?
can you not tub tub?
can she not tub tub?
can we not tub tub?
can you not tub tub?
can they not tub tub? 	can I not be tub tubing?
can you not be tub tubing?
can she not be tub tubing?
can we not be tub tubing?
can you not be tub tubing?
can they not be tub tubing? 	can I not have tub tubed?
can you not have tub tubed?
can she not have tub tubed?
can we not have tub tubed?
can you not have tub tubed?
can they not have tub tubed? 	can I not have been tub tubing?
can you not have been tub tubing?
can she not have been tub tubing?
can we not have been tub tubing?
can you not have been tub tubing?
can they not have been tub tubing?