English verb conjugation
CAN PREFAB

Regular verb: prefab - prefabed - prefabed

Affirmation

Simple form	V-ing form
I can prefab you can prefab he can prefab we can prefab you can prefab they can prefab	I can be prefabing you can be prefabing he can be prefabing we can be prefabing you can be prefabing they can be prefabing
Perfect	V-ing perfect
I can have prefabed you can have prefabed he can have prefabed we can have prefabed you can have prefabed they can have prefabed	I can have been prefabing you can have been prefabing he can have been prefabing we can have been prefabing you can have been prefabing they can have been prefabing

Negation

Simple form	V-ing form
I can't prefab you can't prefab he can't prefab we can't prefab you can't prefab they can't prefab	I can't be prefabing you can't be prefabing he can't be prefabing we can't be prefabing you can't be prefabing they can't be prefabing
Perfect	V-ing perfect
I can't have prefabed you can't have prefabed he can't have prefabed we can't have prefabed you can't have prefabed they can't have prefabed	I can't have been prefabing you can't have been prefabing he can't have been prefabing we can't have been prefabing you can't have been prefabing they can't have been prefabing

Interrogative form

Simple form	V-ing form
can I prefab? can you prefab? can he prefab? can we prefab? can you prefab? can they prefab?	can I be prefabing? can you be prefabing? can he be prefabing? can we be prefabing? can you be prefabing? can they be prefabing?
Perfect	V-ing perfect
can I have prefabed? can you have prefabed? can he have prefabed? can we have prefabed? can you have prefabed? can they have prefabed?	can I have been prefabing? can you have been prefabing? can he have been prefabing? can we have been prefabing? can you have been prefabing? can they have been prefabing?

Interro-negative form

Simple form	V-ing form
can't I prefab? can't you prefab? can't he prefab? can't we prefab? can't you prefab? can't they prefab?	can't I be prefabing? can't you be prefabing? can't he be prefabing? can't we be prefabing? can't you be prefabing? can't they be prefabing?
Perfect	V-ing perfect
can't I have prefabed? can't you have prefabed? can't he have prefabed? can't we have prefabed? can't you have prefabed? can't they have prefabed?	can't I have been prefabing? can't you have been prefabing? can't he have been prefabing? can't we have been prefabing? can't you have been prefabing? can't they have been prefabing?