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 cannot scab you cannot scab he cannot scab we cannot scab you cannot scab they cannot scab	I cannot be scabbing you cannot be scabbing he cannot be scabbing we cannot be scabbing you cannot be scabbing they cannot be scabbing
Perfect	V-ing perfect
I cannot have scabbed you cannot have scabbed he cannot have scabbed we cannot have scabbed you cannot have scabbed they cannot have scabbed	I cannot have been scabbing you cannot have been scabbing he cannot have been scabbing we cannot have been scabbing you cannot have been scabbing they cannot 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 I not scab? can you not scab? can he not scab? can we not scab? can you not scab? can they not scab?	can I not be scabbing? can you not be scabbing? can he not be scabbing? can we not be scabbing? can you not be scabbing? can they not be scabbing?
Perfect	V-ing perfect
can I not have scabbed? can you not have scabbed? can he not have scabbed? can we not have scabbed? can you not have scabbed? can they not have scabbed?	can I not have been scabbing? can you not have been scabbing? can he not have been scabbing? can we not have been scabbing? can you not have been scabbing? can they not have been scabbing?