English verb conjugation
COULD SEDIMENT

Regular verb: sediment - sedimented - sedimented

Affirmation

Simple form	V-ing form
I could sediment you could sediment he could sediment we could sediment you could sediment they could sediment	I could be sedimenting you could be sedimenting he could be sedimenting we could be sedimenting you could be sedimenting they could be sedimenting
Perfect	V-ing perfect
I could have sedimented you could have sedimented he 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 he 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
I couldn't sediment you couldn't sediment he couldn't sediment we couldn't sediment you couldn't sediment they couldn't sediment	I couldn't be sedimenting you couldn't be sedimenting he couldn't be sedimenting we couldn't be sedimenting you couldn't be sedimenting they couldn't be sedimenting
Perfect	V-ing perfect
I couldn't have sedimented you couldn't have sedimented he couldn't have sedimented we couldn't have sedimented you couldn't have sedimented they couldn't have sedimented	I couldn't have been sedimenting you couldn't have been sedimenting he couldn't have been sedimenting we couldn't have been sedimenting you couldn't have been sedimenting they couldn't have been sedimenting

Interrogative form

Simple form	V-ing form
could I sediment? could you sediment? could he sediment? could we sediment? could you sediment? could they sediment?	could I be sedimenting? could you be sedimenting? could he be sedimenting? could we be sedimenting? could you be sedimenting? could they be sedimenting?
Perfect	V-ing perfect
could I have sedimented? could you have sedimented? could he 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 he 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
couldn't I sediment? couldn't you sediment? couldn't he sediment? couldn't we sediment? couldn't you sediment? couldn't they sediment?	couldn't I be sedimenting? couldn't you be sedimenting? couldn't he be sedimenting? couldn't we be sedimenting? couldn't you be sedimenting? couldn't they be sedimenting?
Perfect	V-ing perfect
couldn't I have sedimented? couldn't you have sedimented? couldn't he have sedimented? couldn't we have sedimented? couldn't you have sedimented? couldn't they have sedimented?	couldn't I have been sedimenting? couldn't you have been sedimenting? couldn't he have been sedimenting? couldn't we have been sedimenting? couldn't you have been sedimenting? couldn't they have been sedimenting?