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 can't tub tub you can't tub tub he can't tub tub we can't tub tub you can't tub tub they can't tub tub	I can't be tub tubing you can't be tub tubing he can't be tub tubing we can't be tub tubing you can't be tub tubing they can't be tub tubing
Perfect	V-ing perfect
I can't have tub tubed you can't have tub tubed he can't have tub tubed we can't have tub tubed you can't have tub tubed they can't have tub tubed	I can't have been tub tubing you can't have been tub tubing he can't have been tub tubing we can't have been tub tubing you can't have been tub tubing they can't 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't I tub tub? can't you tub tub? can't he tub tub? can't we tub tub? can't you tub tub? can't they tub tub?	can't I be tub tubing? can't you be tub tubing? can't he be tub tubing? can't we be tub tubing? can't you be tub tubing? can't they be tub tubing?
Perfect	V-ing perfect
can't I have tub tubed? can't you have tub tubed? can't he have tub tubed? can't we have tub tubed? can't you have tub tubed? can't they have tub tubed?	can't I have been tub tubing? can't you have been tub tubing? can't he have been tub tubing? can't we have been tub tubing? can't you have been tub tubing? can't they have been tub tubing?