English verb conjugation
CAN ROBE

Regular verb: robe - robed - robed

Affirmation

Simple form	V-ing form
I can robe you can robe he can robe we can robe you can robe they can robe	I can be robing you can be robing he can be robing we can be robing you can be robing they can be robing
Perfect	V-ing perfect
I can have robed you can have robed he can have robed we can have robed you can have robed they can have robed	I can have been robing you can have been robing he can have been robing we can have been robing you can have been robing they can have been robing

Negation

Simple form	V-ing form
I cannot robe you cannot robe he cannot robe we cannot robe you cannot robe they cannot robe	I cannot be robing you cannot be robing he cannot be robing we cannot be robing you cannot be robing they cannot be robing
Perfect	V-ing perfect
I cannot have robed you cannot have robed he cannot have robed we cannot have robed you cannot have robed they cannot have robed	I cannot have been robing you cannot have been robing he cannot have been robing we cannot have been robing you cannot have been robing they cannot have been robing

Interrogative form

Simple form	V-ing form
can I robe? can you robe? can he robe? can we robe? can you robe? can they robe?	can I be robing? can you be robing? can he be robing? can we be robing? can you be robing? can they be robing?
Perfect	V-ing perfect
can I have robed? can you have robed? can he have robed? can we have robed? can you have robed? can they have robed?	can I have been robing? can you have been robing? can he have been robing? can we have been robing? can you have been robing? can they have been robing?

Interro-negative form

Simple form	V-ing form
can I not robe? can you not robe? can he not robe? can we not robe? can you not robe? can they not robe?	can I not be robing? can you not be robing? can he not be robing? can we not be robing? can you not be robing? can they not be robing?
Perfect	V-ing perfect
can I not have robed? can you not have robed? can he not have robed? can we not have robed? can you not have robed? can they not have robed?	can I not have been robing? can you not have been robing? can he not have been robing? can we not have been robing? can you not have been robing? can they not have been robing?