English verb conjugation
CAN SCAB

Regular verb: scab - scabbed - scabbed

Affirmation

Simple form	V-ing form
I can scab you can scab he can scab we can scab you can scab they can scab	I can be scabbing you can be scabbing he can be scabbing we can be scabbing you can be scabbing they can be scabbing
Perfect	V-ing perfect
I can have scabbed you can have scabbed he can have scabbed we can have scabbed you can have scabbed they can have scabbed	I can have been scabbing you can have been scabbing he can have been scabbing we can have been scabbing you can have been scabbing they can have been scabbing

Negation

Simple form	V-ing form
I can't scab you can't scab he can't scab we can't scab you can't scab they can't scab	I can't be scabbing you can't be scabbing he can't be scabbing we can't be scabbing you can't be scabbing they can't be scabbing
Perfect	V-ing perfect
I can't have scabbed you can't have scabbed he can't have scabbed we can't have scabbed you can't have scabbed they can't have scabbed	I can't have been scabbing you can't have been scabbing he can't have been scabbing we can't have been scabbing you can't have been scabbing they can't have been scabbing

Interrogative form

Simple form	V-ing form
can I scab? can you scab? can he scab? can we scab? can you scab? can they scab?	can I be scabbing? can you be scabbing? can he be scabbing? can we be scabbing? can you be scabbing? can they be scabbing?
Perfect	V-ing perfect
can I have scabbed? can you have scabbed? can he have scabbed? can we have scabbed? can you have scabbed? can they have scabbed?	can I have been scabbing? can you have been scabbing? can he have been scabbing? can we have been scabbing? can you have been scabbing? can they have been scabbing?

Interro-negative form

Simple form	V-ing form
can't I scab? can't you scab? can't he scab? can't we scab? can't you scab? can't they scab?	can't I be scabbing? can't you be scabbing? can't he be scabbing? can't we be scabbing? can't you be scabbing? can't they be scabbing?
Perfect	V-ing perfect
can't I have scabbed? can't you have scabbed? can't he have scabbed? can't we have scabbed? can't you have scabbed? can't they have scabbed?	can't I have been scabbing? can't you have been scabbing? can't he have been scabbing? can't we have been scabbing? can't you have been scabbing? can't they have been scabbing?