English verb conjugation
CAN STAB

Regular verb: stab - stabbed - stabbed

Affirmation

Simple form	V-ing form
I can stab you can stab she can stab we can stab you can stab they can stab	I can be stabbing you can be stabbing she can be stabbing we can be stabbing you can be stabbing they can be stabbing
Perfect	V-ing perfect
I can have stabbed you can have stabbed she can have stabbed we can have stabbed you can have stabbed they can have stabbed	I can have been stabbing you can have been stabbing she can have been stabbing we can have been stabbing you can have been stabbing they can have been stabbing

Negation

Simple form	V-ing form
I can't stab you can't stab she can't stab we can't stab you can't stab they can't stab	I can't be stabbing you can't be stabbing she can't be stabbing we can't be stabbing you can't be stabbing they can't be stabbing
Perfect	V-ing perfect
I can't have stabbed you can't have stabbed she can't have stabbed we can't have stabbed you can't have stabbed they can't have stabbed	I can't have been stabbing you can't have been stabbing she can't have been stabbing we can't have been stabbing you can't have been stabbing they can't have been stabbing

Interrogative form

Simple form	V-ing form
can I stab? can you stab? can she stab? can we stab? can you stab? can they stab?	can I be stabbing? can you be stabbing? can she be stabbing? can we be stabbing? can you be stabbing? can they be stabbing?
Perfect	V-ing perfect
can I have stabbed? can you have stabbed? can she have stabbed? can we have stabbed? can you have stabbed? can they have stabbed?	can I have been stabbing? can you have been stabbing? can she have been stabbing? can we have been stabbing? can you have been stabbing? can they have been stabbing?

Interro-negative form

Simple form	V-ing form
can't I stab? can't you stab? can't she stab? can't we stab? can't you stab? can't they stab?	can't I be stabbing? can't you be stabbing? can't she be stabbing? can't we be stabbing? can't you be stabbing? can't they be stabbing?
Perfect	V-ing perfect
can't I have stabbed? can't you have stabbed? can't she have stabbed? can't we have stabbed? can't you have stabbed? can't they have stabbed?	can't I have been stabbing? can't you have been stabbing? can't she have been stabbing? can't we have been stabbing? can't you have been stabbing? can't they have been stabbing?