I could rig you could rig she could rig we could rig you could rig they could rig
V-ing form
I could be rigging you could be rigging she could be rigging we could be rigging you could be rigging they could be rigging
Perfect
I could have rigged you could have rigged she could have rigged we could have rigged you could have rigged they could have rigged
V-ing perfect
I could have been rigging you could have been rigging she could have been rigging we could have been rigging you could have been rigging they could have been rigging
Negation
Simple form
I could not rig you could not rig she could not rig we could not rig you could not rig they could not rig
V-ing form
I could not be rigging you could not be rigging she could not be rigging we could not be rigging you could not be rigging they could not be rigging
Perfect
I could not have rigged you could not have rigged she could not have rigged we could not have rigged you could not have rigged they could not have rigged
V-ing perfect
I could not have been rigging you could not have been rigging she could not have been rigging we could not have been rigging you could not have been rigging they could not have been rigging
Interrogative form
Simple form
could I rig? could you rig? could she rig? could we rig? could you rig? could they rig?
V-ing form
could I be rigging? could you be rigging? could she be rigging? could we be rigging? could you be rigging? could they be rigging?
Perfect
could I have rigged? could you have rigged? could she have rigged? could we have rigged? could you have rigged? could they have rigged?
V-ing perfect
could I have been rigging? could you have been rigging? could she have been rigging? could we have been rigging? could you have been rigging? could they have been rigging?
Interro-negative form
Simple form
could I not rig? could you not rig? could she not rig? could we not rig? could you not rig? could they not rig?
V-ing form
could I not be rigging? could you not be rigging? could she not be rigging? could we not be rigging? could you not be rigging? could they not be rigging?
Perfect
could I not have rigged? could you not have rigged? could she not have rigged? could we not have rigged? could you not have rigged? could they not have rigged?
V-ing perfect
could I not have been rigging? could you not have been rigging? could she not have been rigging? could we not have been rigging? could you not have been rigging? could they not have been rigging?