could contemn
Regular verb: contemn - contemned- contemned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could contemn
you could contemn
she could contemn
we could contemn
you could contemn
they could contemn 	I could be contemning
you could be contemning
she could be contemning
we could be contemning
you could be contemning
they could be contemning	I could have contemned
you could have contemned
she could have contemned
we could have contemned
you could have contemned
they could have contemned	I could have been contemning
you could have been contemning
she could have been contemning
we could have been contemning
you could have been contemning
they could have been contemning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't contemn
you couldn't contemn
she couldn't contemn
we couldn't contemn
you couldn't contemn
they couldn't contemn 	I couldn't be contemning
you couldn't be contemning
she couldn't be contemning
we couldn't be contemning
you couldn't be contemning
they couldn't be contemning	I couldn't have contemned
you couldn't have contemned
she couldn't have contemned
we couldn't have contemned
you couldn't have contemned
they couldn't have contemned	I couldn't have been contemning
you couldn't have been contemning
she couldn't have been contemning
we couldn't have been contemning
you couldn't have been contemning
they couldn't have been contemning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I contemn?
could you contemn?
could she contemn?
could we contemn?
could you contemn?
could they contemn? 	could I be contemning?
could you be contemning?
could she be contemning?
could we be contemning?
could you be contemning?
could they be contemning? 	could I have contemned?
could you have contemned?
could she have contemned?
could we have contemned?
could you have contemned?
could they have contemned? 	could I have been contemning?
could you have been contemning?
could she have been contemning?
could we have been contemning?
could you have been contemning?
could they have been contemning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I contemn?
couldn't you contemn?
couldn't she contemn?
couldn't we contemn?
couldn't you contemn?
couldn't they contemn? 	couldn't I be contemning?
couldn't you be contemning?
couldn't she be contemning?
couldn't we be contemning?
couldn't you be contemning?
couldn't they be contemning? 	couldn't I have contemned?
couldn't you have contemned?
couldn't she have contemned?
couldn't we have contemned?
couldn't you have contemned?
couldn't they have contemned? 	couldn't I have been contemning?
couldn't you have been contemning?
couldn't she have been contemning?
couldn't we have been contemning?
couldn't you have been contemning?
couldn't they have been contemning?