English verb conjugation
CAN TUB TUB

Regular verb: tub tub - tub tubed - tub tubed

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

Affirmation

Simple form	V-ing form
I can tub tub you can tub tub he 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 he can be tub tubing we can be tub tubing you can be tub tubing they can be tub tubing
Perfect	V-ing perfect
I can have tub tubed you can have tub tubed he 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 he 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
I cannot tub tub you cannot tub tub he 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 he cannot be tub tubing we cannot be tub tubing you cannot be tub tubing they cannot be tub tubing
Perfect	V-ing perfect
I cannot have tub tubed you cannot have tub tubed he 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 he 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
can I tub tub? can you tub tub? can he 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 he be tub tubing? can we be tub tubing? can you be tub tubing? can they be tub tubing?
Perfect	V-ing perfect
can I have tub tubed? can you have tub tubed? can he 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 he 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
can I not tub tub? can you not tub tub? can he 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 he not be tub tubing? can we not be tub tubing? can you not be tub tubing? can they not be tub tubing?
Perfect	V-ing perfect
can I not have tub tubed? can you not have tub tubed? can he 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 he 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?