English verb conjugation
CAN AID

Regular verb: aid - aided - aided

Affirmation

Simple form	V-ing form
I can aid you can aid he can aid we can aid you can aid they can aid	I can be aiding you can be aiding he can be aiding we can be aiding you can be aiding they can be aiding
Perfect	V-ing perfect
I can have aided you can have aided he can have aided we can have aided you can have aided they can have aided	I can have been aiding you can have been aiding he can have been aiding we can have been aiding you can have been aiding they can have been aiding

Negation

Simple form	V-ing form
I can't aid you can't aid he can't aid we can't aid you can't aid they can't aid	I can't be aiding you can't be aiding he can't be aiding we can't be aiding you can't be aiding they can't be aiding
Perfect	V-ing perfect
I can't have aided you can't have aided he can't have aided we can't have aided you can't have aided they can't have aided	I can't have been aiding you can't have been aiding he can't have been aiding we can't have been aiding you can't have been aiding they can't have been aiding

Interrogative form

Simple form	V-ing form
can I aid? can you aid? can he aid? can we aid? can you aid? can they aid?	can I be aiding? can you be aiding? can he be aiding? can we be aiding? can you be aiding? can they be aiding?
Perfect	V-ing perfect
can I have aided? can you have aided? can he have aided? can we have aided? can you have aided? can they have aided?	can I have been aiding? can you have been aiding? can he have been aiding? can we have been aiding? can you have been aiding? can they have been aiding?

Interro-negative form

Simple form	V-ing form
can't I aid? can't you aid? can't he aid? can't we aid? can't you aid? can't they aid?	can't I be aiding? can't you be aiding? can't he be aiding? can't we be aiding? can't you be aiding? can't they be aiding?
Perfect	V-ing perfect
can't I have aided? can't you have aided? can't he have aided? can't we have aided? can't you have aided? can't they have aided?	can't I have been aiding? can't you have been aiding? can't he have been aiding? can't we have been aiding? can't you have been aiding? can't they have been aiding?