must summate
Verbe régulier : summate - summated- summated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must summate
you must summate
she must summate
we must summate
you must summate
they must summate 	I must be summating
you must be summating
she must be summating
we must be summating
you must be summating
they must be summating	I must have summated
you must have summated
she must have summated
we must have summated
you must have summated
they must have summated	I must have been summating
you must have been summating
she must have been summating
we must have been summating
you must have been summating
they must have been summating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not summate
you must not summate
she must not summate
we must not summate
you must not summate
they must not summate 	I must not be summating
you must not be summating
she must not be summating
we must not be summating
you must not be summating
they must not be summating	I must not have summated
you must not have summated
she must not have summated
we must not have summated
you must not have summated
they must not have summated	I must not have been summating
you must not have been summating
she must not have been summating
we must not have been summating
you must not have been summating
they must not have been summating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I summate?
must you summate?
must she summate?
must we summate?
must you summate?
must they summate? 	must I be summating?
must you be summating?
must she be summating?
must we be summating?
must you be summating?
must they be summating? 	must I have summated?
must you have summated?
must she have summated?
must we have summated?
must you have summated?
must they have summated? 	must I have been summating?
must you have been summating?
must she have been summating?
must we have been summating?
must you have been summating?
must they have been summating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not summate?
must you not summate?
must she not summate?
must we not summate?
must you not summate?
must they not summate? 	must I not be summating?
must you not be summating?
must she not be summating?
must we not be summating?
must you not be summating?
must they not be summating? 	must I not have summated?
must you not have summated?
must she not have summated?
must we not have summated?
must you not have summated?
must they not have summated? 	must I not have been summating?
must you not have been summating?
must she not have been summating?
must we not have been summating?
must you not have been summating?
must they not have been summating?