I must gossip you must gossip he must gossip we must gossip you must gossip they must gossip
V-ing form
I must be gossiping you must be gossiping he must be gossiping we must be gossiping you must be gossiping they must be gossiping
Perfect
I must have gossiped you must have gossiped he must have gossiped we must have gossiped you must have gossiped they must have gossiped
V-ing perfect
I must have been gossiping you must have been gossiping he must have been gossiping we must have been gossiping you must have been gossiping they must have been gossiping
Negation
Simple form
I must not gossip you must not gossip he must not gossip we must not gossip you must not gossip they must not gossip
V-ing form
I must not be gossiping you must not be gossiping he must not be gossiping we must not be gossiping you must not be gossiping they must not be gossiping
Perfect
I must not have gossiped you must not have gossiped he must not have gossiped we must not have gossiped you must not have gossiped they must not have gossiped
V-ing perfect
I must not have been gossiping you must not have been gossiping he must not have been gossiping we must not have been gossiping you must not have been gossiping they must not have been gossiping
Interrogative form
Simple form
must I gossip? must you gossip? must he gossip? must we gossip? must you gossip? must they gossip?
V-ing form
must I be gossiping? must you be gossiping? must he be gossiping? must we be gossiping? must you be gossiping? must they be gossiping?
Perfect
must I have gossiped? must you have gossiped? must he have gossiped? must we have gossiped? must you have gossiped? must they have gossiped?
V-ing perfect
must I have been gossiping? must you have been gossiping? must he have been gossiping? must we have been gossiping? must you have been gossiping? must they have been gossiping?
Interro-negative form
Simple form
must I not gossip? must you not gossip? must he not gossip? must we not gossip? must you not gossip? must they not gossip?
V-ing form
must I not be gossiping? must you not be gossiping? must he not be gossiping? must we not be gossiping? must you not be gossiping? must they not be gossiping?
Perfect
must I not have gossiped? must you not have gossiped? must he not have gossiped? must we not have gossiped? must you not have gossiped? must they not have gossiped?
V-ing perfect
must I not have been gossiping? must you not have been gossiping? must he not have been gossiping? must we not have been gossiping? must you not have been gossiping? must they not have been gossiping?