English verb conjugation
CAN BLUB

Regular verb: blub - blubed - blubed

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I can't blub you can't blub he can't blub we can't blub you can't blub they can't blub	I can't be blubing you can't be blubing he can't be blubing we can't be blubing you can't be blubing they can't be blubing
Perfect	V-ing perfect
I can't have blubed you can't have blubed he can't have blubed we can't have blubed you can't have blubed they can't have blubed	I can't have been blubing you can't have been blubing he can't have been blubing we can't have been blubing you can't have been blubing they can't have been blubing

Interrogative form

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