could sediment
Regular verb: sediment - sedimented- sedimented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sediment
you could sediment
she could sediment
we could sediment
you could sediment
they could sediment 	I could be sedimenting
you could be sedimenting
she could be sedimenting
we could be sedimenting
you could be sedimenting
they could be sedimenting	I could have sedimented
you could have sedimented
she could have sedimented
we could have sedimented
you could have sedimented
they could have sedimented	I could have been sedimenting
you could have been sedimenting
she could have been sedimenting
we could have been sedimenting
you could have been sedimenting
they could have been sedimenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not sediment
you could not sediment
she could not sediment
we could not sediment
you could not sediment
they could not sediment 	I could not be sedimenting
you could not be sedimenting
she could not be sedimenting
we could not be sedimenting
you could not be sedimenting
they could not be sedimenting	I could not have sedimented
you could not have sedimented
she could not have sedimented
we could not have sedimented
you could not have sedimented
they could not have sedimented	I could not have been sedimenting
you could not have been sedimenting
she could not have been sedimenting
we could not have been sedimenting
you could not have been sedimenting
they could not have been sedimenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sediment?
could you sediment?
could she sediment?
could we sediment?
could you sediment?
could they sediment? 	could I be sedimenting?
could you be sedimenting?
could she be sedimenting?
could we be sedimenting?
could you be sedimenting?
could they be sedimenting? 	could I have sedimented?
could you have sedimented?
could she have sedimented?
could we have sedimented?
could you have sedimented?
could they have sedimented? 	could I have been sedimenting?
could you have been sedimenting?
could she have been sedimenting?
could we have been sedimenting?
could you have been sedimenting?
could they have been sedimenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not sediment?
could you not sediment?
could she not sediment?
could we not sediment?
could you not sediment?
could they not sediment? 	could I not be sedimenting?
could you not be sedimenting?
could she not be sedimenting?
could we not be sedimenting?
could you not be sedimenting?
could they not be sedimenting? 	could I not have sedimented?
could you not have sedimented?
could she not have sedimented?
could we not have sedimented?
could you not have sedimented?
could they not have sedimented? 	could I not have been sedimenting?
could you not have been sedimenting?
could she not have been sedimenting?
could we not have been sedimenting?
could you not have been sedimenting?
could they not have been sedimenting?