must stomach
Regular verb: stomach - stomached- stomached

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must stomach
you must stomach
he must stomach
we must stomach
you must stomach
they must stomach 	I must be stomaching
you must be stomaching
he must be stomaching
we must be stomaching
you must be stomaching
they must be stomaching	I must have stomached
you must have stomached
he must have stomached
we must have stomached
you must have stomached
they must have stomached	I must have been stomaching
you must have been stomaching
he must have been stomaching
we must have been stomaching
you must have been stomaching
they must have been stomaching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not stomach
you must not stomach
he must not stomach
we must not stomach
you must not stomach
they must not stomach 	I must not be stomaching
you must not be stomaching
he must not be stomaching
we must not be stomaching
you must not be stomaching
they must not be stomaching	I must not have stomached
you must not have stomached
he must not have stomached
we must not have stomached
you must not have stomached
they must not have stomached	I must not have been stomaching
you must not have been stomaching
he must not have been stomaching
we must not have been stomaching
you must not have been stomaching
they must not have been stomaching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I stomach?
must you stomach?
must he stomach?
must we stomach?
must you stomach?
must they stomach? 	must I be stomaching?
must you be stomaching?
must he be stomaching?
must we be stomaching?
must you be stomaching?
must they be stomaching? 	must I have stomached?
must you have stomached?
must he have stomached?
must we have stomached?
must you have stomached?
must they have stomached? 	must I have been stomaching?
must you have been stomaching?
must he have been stomaching?
must we have been stomaching?
must you have been stomaching?
must they have been stomaching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not stomach?
must you not stomach?
must he not stomach?
must we not stomach?
must you not stomach?
must they not stomach? 	must I not be stomaching?
must you not be stomaching?
must he not be stomaching?
must we not be stomaching?
must you not be stomaching?
must they not be stomaching? 	must I not have stomached?
must you not have stomached?
must he not have stomached?
must we not have stomached?
must you not have stomached?
must they not have stomached? 	must I not have been stomaching?
must you not have been stomaching?
must he not have been stomaching?
must we not have been stomaching?
must you not have been stomaching?
must they not have been stomaching?