must nourish
Regular verb: nourish - nourished- nourished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must nourish
you must nourish
she must nourish
we must nourish
you must nourish
they must nourish 	I must be nourishing
you must be nourishing
she must be nourishing
we must be nourishing
you must be nourishing
they must be nourishing	I must have nourished
you must have nourished
she 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
she 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 mustn't nourish
you mustn't nourish
she mustn't nourish
we mustn't nourish
you mustn't nourish
they mustn't nourish 	I mustn't be nourishing
you mustn't be nourishing
she mustn't be nourishing
we mustn't be nourishing
you mustn't be nourishing
they mustn't be nourishing	I mustn't have nourished
you mustn't have nourished
she mustn't have nourished
we mustn't have nourished
you mustn't have nourished
they mustn't have nourished	I mustn't have been nourishing
you mustn't have been nourishing
she mustn't have been nourishing
we mustn't have been nourishing
you mustn't have been nourishing
they mustn't have been nourishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I nourish?
must you nourish?
must she nourish?
must we nourish?
must you nourish?
must they nourish? 	must I be nourishing?
must you be nourishing?
must she be nourishing?
must we be nourishing?
must you be nourishing?
must they be nourishing? 	must I have nourished?
must you have nourished?
must she 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 she 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 	
mustn't I nourish?
mustn't you nourish?
mustn't she nourish?
mustn't we nourish?
mustn't you nourish?
mustn't they nourish? 	mustn't I be nourishing?
mustn't you be nourishing?
mustn't she be nourishing?
mustn't we be nourishing?
mustn't you be nourishing?
mustn't they be nourishing? 	mustn't I have nourished?
mustn't you have nourished?
mustn't she have nourished?
mustn't we have nourished?
mustn't you have nourished?
mustn't they have nourished? 	mustn't I have been nourishing?
mustn't you have been nourishing?
mustn't she have been nourishing?
mustn't we have been nourishing?
mustn't you have been nourishing?
mustn't they have been nourishing?