I can gripe you can gripe she can gripe we can gripe you can gripe they can gripe
V-ing form
I can be griping you can be griping she can be griping we can be griping you can be griping they can be griping
Perfect
I can have griped you can have griped she can have griped we can have griped you can have griped they can have griped
V-ing perfect
I can have been griping you can have been griping she can have been griping we can have been griping you can have been griping they can have been griping
Negation
Simple form
I can't gripe you can't gripe she can't gripe we can't gripe you can't gripe they can't gripe
V-ing form
I can't be griping you can't be griping she can't be griping we can't be griping you can't be griping they can't be griping
Perfect
I can't have griped you can't have griped she can't have griped we can't have griped you can't have griped they can't have griped
V-ing perfect
I can't have been griping you can't have been griping she can't have been griping we can't have been griping you can't have been griping they can't have been griping
Interrogative form
Simple form
can I gripe? can you gripe? can she gripe? can we gripe? can you gripe? can they gripe?
V-ing form
can I be griping? can you be griping? can she be griping? can we be griping? can you be griping? can they be griping?
Perfect
can I have griped? can you have griped? can she have griped? can we have griped? can you have griped? can they have griped?
V-ing perfect
can I have been griping? can you have been griping? can she have been griping? can we have been griping? can you have been griping? can they have been griping?
Interro-negative form
Simple form
can't I gripe? can't you gripe? can't she gripe? can't we gripe? can't you gripe? can't they gripe?
V-ing form
can't I be griping? can't you be griping? can't she be griping? can't we be griping? can't you be griping? can't they be griping?
Perfect
can't I have griped? can't you have griped? can't she have griped? can't we have griped? can't you have griped? can't they have griped?
V-ing perfect
can't I have been griping? can't you have been griping? can't she have been griping? can't we have been griping? can't you have been griping? can't they have been griping?