must checkmate
Verbe régulier : checkmate - checkmated- checkmated
Traduction française : faire échec et mat à - contrecarrer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must checkmate
you must checkmate
she must checkmate
we must checkmate
you must checkmate
they must checkmate 	I must be checkmating
you must be checkmating
she must be checkmating
we must be checkmating
you must be checkmating
they must be checkmating	I must have checkmated
you must have checkmated
she must have checkmated
we must have checkmated
you must have checkmated
they must have checkmated	I must have been checkmating
you must have been checkmating
she must have been checkmating
we must have been checkmating
you must have been checkmating
they must have been checkmating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not checkmate
you must not checkmate
she must not checkmate
we must not checkmate
you must not checkmate
they must not checkmate 	I must not be checkmating
you must not be checkmating
she must not be checkmating
we must not be checkmating
you must not be checkmating
they must not be checkmating	I must not have checkmated
you must not have checkmated
she must not have checkmated
we must not have checkmated
you must not have checkmated
they must not have checkmated	I must not have been checkmating
you must not have been checkmating
she must not have been checkmating
we must not have been checkmating
you must not have been checkmating
they must not have been checkmating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I checkmate?
must you checkmate?
must she checkmate?
must we checkmate?
must you checkmate?
must they checkmate? 	must I be checkmating?
must you be checkmating?
must she be checkmating?
must we be checkmating?
must you be checkmating?
must they be checkmating? 	must I have checkmated?
must you have checkmated?
must she have checkmated?
must we have checkmated?
must you have checkmated?
must they have checkmated? 	must I have been checkmating?
must you have been checkmating?
must she have been checkmating?
must we have been checkmating?
must you have been checkmating?
must they have been checkmating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not checkmate?
must you not checkmate?
must she not checkmate?
must we not checkmate?
must you not checkmate?
must they not checkmate? 	must I not be checkmating?
must you not be checkmating?
must she not be checkmating?
must we not be checkmating?
must you not be checkmating?
must they not be checkmating? 	must I not have checkmated?
must you not have checkmated?
must she not have checkmated?
must we not have checkmated?
must you not have checkmated?
must they not have checkmated? 	must I not have been checkmating?
must you not have been checkmating?
must she not have been checkmating?
must we not have been checkmating?
must you not have been checkmating?
must they not have been checkmating?