must feel
Irregular verb: feel - felt- felt

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must feel
you must feel
he must feel
we must feel
you must feel
they must feel 	I must be feeling
you must be feeling
he must be feeling
we must be feeling
you must be feeling
they must be feeling	I must have felt
you must have felt
he must have felt
we must have felt
you must have felt
they must have felt	I must have been feeling
you must have been feeling
he must have been feeling
we must have been feeling
you must have been feeling
they must have been feeling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not feel
you must not feel
he must not feel
we must not feel
you must not feel
they must not feel 	I must not be feeling
you must not be feeling
he must not be feeling
we must not be feeling
you must not be feeling
they must not be feeling	I must not have felt
you must not have felt
he must not have felt
we must not have felt
you must not have felt
they must not have felt	I must not have been feeling
you must not have been feeling
he must not have been feeling
we must not have been feeling
you must not have been feeling
they must not have been feeling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I feel?
must you feel?
must he feel?
must we feel?
must you feel?
must they feel? 	must I be feeling?
must you be feeling?
must he be feeling?
must we be feeling?
must you be feeling?
must they be feeling? 	must I have felt?
must you have felt?
must he have felt?
must we have felt?
must you have felt?
must they have felt? 	must I have been feeling?
must you have been feeling?
must he have been feeling?
must we have been feeling?
must you have been feeling?
must they have been feeling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not feel?
must you not feel?
must he not feel?
must we not feel?
must you not feel?
must they not feel? 	must I not be feeling?
must you not be feeling?
must he not be feeling?
must we not be feeling?
must you not be feeling?
must they not be feeling? 	must I not have felt?
must you not have felt?
must he not have felt?
must we not have felt?
must you not have felt?
must they not have felt? 	must I not have been feeling?
must you not have been feeling?
must he not have been feeling?
must we not have been feeling?
must you not have been feeling?
must they not have been feeling?