could nourish
Regular verb: nourish - nourished- nourished

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't nourish
you couldn't nourish
he couldn't nourish
we couldn't nourish
you couldn't nourish
they couldn't nourish 	I couldn't be nourishing
you couldn't be nourishing
he couldn't be nourishing
we couldn't be nourishing
you couldn't be nourishing
they couldn't be nourishing	I couldn't have nourished
you couldn't have nourished
he couldn't have nourished
we couldn't have nourished
you couldn't have nourished
they couldn't have nourished	I couldn't have been nourishing
you couldn't have been nourishing
he couldn't have been nourishing
we couldn't have been nourishing
you couldn't have been nourishing
they couldn't have been nourishing	

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

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