I could gossip you could gossip he could gossip we could gossip you could gossip they could gossip
V-ing form
I could be gossiping you could be gossiping he could be gossiping we could be gossiping you could be gossiping they could be gossiping
Perfect
I could have gossiped you could have gossiped he could have gossiped we could have gossiped you could have gossiped they could have gossiped
V-ing perfect
I could have been gossiping you could have been gossiping he could have been gossiping we could have been gossiping you could have been gossiping they could have been gossiping
Negation
Simple form
I couldn't gossip you couldn't gossip he couldn't gossip we couldn't gossip you couldn't gossip they couldn't gossip
V-ing form
I couldn't be gossiping you couldn't be gossiping he couldn't be gossiping we couldn't be gossiping you couldn't be gossiping they couldn't be gossiping
Perfect
I couldn't have gossiped you couldn't have gossiped he couldn't have gossiped we couldn't have gossiped you couldn't have gossiped they couldn't have gossiped
V-ing perfect
I couldn't have been gossiping you couldn't have been gossiping he couldn't have been gossiping we couldn't have been gossiping you couldn't have been gossiping they couldn't have been gossiping
Interrogative form
Simple form
could I gossip? could you gossip? could he gossip? could we gossip? could you gossip? could they gossip?
V-ing form
could I be gossiping? could you be gossiping? could he be gossiping? could we be gossiping? could you be gossiping? could they be gossiping?
Perfect
could I have gossiped? could you have gossiped? could he have gossiped? could we have gossiped? could you have gossiped? could they have gossiped?
V-ing perfect
could I have been gossiping? could you have been gossiping? could he have been gossiping? could we have been gossiping? could you have been gossiping? could they have been gossiping?
Interro-negative form
Simple form
couldn't I gossip? couldn't you gossip? couldn't he gossip? couldn't we gossip? couldn't you gossip? couldn't they gossip?
V-ing form
couldn't I be gossiping? couldn't you be gossiping? couldn't he be gossiping? couldn't we be gossiping? couldn't you be gossiping? couldn't they be gossiping?
Perfect
couldn't I have gossiped? couldn't you have gossiped? couldn't he have gossiped? couldn't we have gossiped? couldn't you have gossiped? couldn't they have gossiped?
V-ing perfect
couldn't I have been gossiping? couldn't you have been gossiping? couldn't he have been gossiping? couldn't we have been gossiping? couldn't you have been gossiping? couldn't they have been gossiping?