English verb conjugation
MUST CUIRASS

Regular verb: cuirass - cuirassed - cuirassed

Affirmation

Simple form	V-ing form
I must cuirass you must cuirass he must cuirass we must cuirass you must cuirass they must cuirass	I must be cuirassing you must be cuirassing he must be cuirassing we must be cuirassing you must be cuirassing they must be cuirassing
Perfect	V-ing perfect
I must have cuirassed you must have cuirassed he must have cuirassed we must have cuirassed you must have cuirassed they must have cuirassed	I must have been cuirassing you must have been cuirassing he must have been cuirassing we must have been cuirassing you must have been cuirassing they must have been cuirassing

Negation

Simple form	V-ing form
I must not cuirass you must not cuirass he must not cuirass we must not cuirass you must not cuirass they must not cuirass	I must not be cuirassing you must not be cuirassing he must not be cuirassing we must not be cuirassing you must not be cuirassing they must not be cuirassing
Perfect	V-ing perfect
I must not have cuirassed you must not have cuirassed he must not have cuirassed we must not have cuirassed you must not have cuirassed they must not have cuirassed	I must not have been cuirassing you must not have been cuirassing he must not have been cuirassing we must not have been cuirassing you must not have been cuirassing they must not have been cuirassing

Interrogative form

Simple form	V-ing form
must I cuirass? must you cuirass? must he cuirass? must we cuirass? must you cuirass? must they cuirass?	must I be cuirassing? must you be cuirassing? must he be cuirassing? must we be cuirassing? must you be cuirassing? must they be cuirassing?
Perfect	V-ing perfect
must I have cuirassed? must you have cuirassed? must he have cuirassed? must we have cuirassed? must you have cuirassed? must they have cuirassed?	must I have been cuirassing? must you have been cuirassing? must he have been cuirassing? must we have been cuirassing? must you have been cuirassing? must they have been cuirassing?

Interro-negative form

Simple form	V-ing form
must I not cuirass? must you not cuirass? must he not cuirass? must we not cuirass? must you not cuirass? must they not cuirass?	must I not be cuirassing? must you not be cuirassing? must he not be cuirassing? must we not be cuirassing? must you not be cuirassing? must they not be cuirassing?
Perfect	V-ing perfect
must I not have cuirassed? must you not have cuirassed? must he not have cuirassed? must we not have cuirassed? must you not have cuirassed? must they not have cuirassed?	must I not have been cuirassing? must you not have been cuirassing? must he not have been cuirassing? must we not have been cuirassing? must you not have been cuirassing? must they not have been cuirassing?