must nourish
Regular verb: nourish - nourished- nourished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must nourish
you must nourish
he must nourish
we must nourish
you must nourish
they must nourish 	I must be nourishing
you must be nourishing
he must be nourishing
we must be nourishing
you must be nourishing
they must be nourishing	I must have nourished
you must have nourished
he must have nourished
we must have nourished
you must have nourished
they must have nourished	I must have been nourishing
you must have been nourishing
he must have been nourishing
we must have been nourishing
you must have been nourishing
they must have been nourishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not nourish
you must not nourish
he must not nourish
we must not nourish
you must not nourish
they must not nourish 	I must not be nourishing
you must not be nourishing
he must not be nourishing
we must not be nourishing
you must not be nourishing
they must not be nourishing	I must not have nourished
you must not have nourished
he must not have nourished
we must not have nourished
you must not have nourished
they must not have nourished	I must not have been nourishing
you must not have been nourishing
he must not have been nourishing
we must not have been nourishing
you must not have been nourishing
they must not have been nourishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I nourish?
must you nourish?
must he nourish?
must we nourish?
must you nourish?
must they nourish? 	must I be nourishing?
must you be nourishing?
must he be nourishing?
must we be nourishing?
must you be nourishing?
must they be nourishing? 	must I have nourished?
must you have nourished?
must he have nourished?
must we have nourished?
must you have nourished?
must they have nourished? 	must I have been nourishing?
must you have been nourishing?
must he have been nourishing?
must we have been nourishing?
must you have been nourishing?
must they have been nourishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not nourish?
must you not nourish?
must he not nourish?
must we not nourish?
must you not nourish?
must they not nourish? 	must I not be nourishing?
must you not be nourishing?
must he not be nourishing?
must we not be nourishing?
must you not be nourishing?
must they not be nourishing? 	must I not have nourished?
must you not have nourished?
must he not have nourished?
must we not have nourished?
must you not have nourished?
must they not have nourished? 	must I not have been nourishing?
must you not have been nourishing?
must he not have been nourishing?
must we not have been nourishing?
must you not have been nourishing?
must they not have been nourishing?