English verb conjugation
CAN CRIB

Regular verb: crib - cribbed - cribbed

Affirmation

Simple form	V-ing form
I can crib you can crib he can crib we can crib you can crib they can crib	I can be cribbing you can be cribbing he can be cribbing we can be cribbing you can be cribbing they can be cribbing
Perfect	V-ing perfect
I can have cribbed you can have cribbed he can have cribbed we can have cribbed you can have cribbed they can have cribbed	I can have been cribbing you can have been cribbing he can have been cribbing we can have been cribbing you can have been cribbing they can have been cribbing

Negation

Simple form	V-ing form
I can't crib you can't crib he can't crib we can't crib you can't crib they can't crib	I can't be cribbing you can't be cribbing he can't be cribbing we can't be cribbing you can't be cribbing they can't be cribbing
Perfect	V-ing perfect
I can't have cribbed you can't have cribbed he can't have cribbed we can't have cribbed you can't have cribbed they can't have cribbed	I can't have been cribbing you can't have been cribbing he can't have been cribbing we can't have been cribbing you can't have been cribbing they can't have been cribbing

Interrogative form

Simple form	V-ing form
can I crib? can you crib? can he crib? can we crib? can you crib? can they crib?	can I be cribbing? can you be cribbing? can he be cribbing? can we be cribbing? can you be cribbing? can they be cribbing?
Perfect	V-ing perfect
can I have cribbed? can you have cribbed? can he have cribbed? can we have cribbed? can you have cribbed? can they have cribbed?	can I have been cribbing? can you have been cribbing? can he have been cribbing? can we have been cribbing? can you have been cribbing? can they have been cribbing?

Interro-negative form

Simple form	V-ing form
can't I crib? can't you crib? can't he crib? can't we crib? can't you crib? can't they crib?	can't I be cribbing? can't you be cribbing? can't he be cribbing? can't we be cribbing? can't you be cribbing? can't they be cribbing?
Perfect	V-ing perfect
can't I have cribbed? can't you have cribbed? can't he have cribbed? can't we have cribbed? can't you have cribbed? can't they have cribbed?	can't I have been cribbing? can't you have been cribbing? can't he have been cribbing? can't we have been cribbing? can't you have been cribbing? can't they have been cribbing?