English verb conjugation
COULD PRESURROUND

Regular verb: presurround - presurrounded - presurrounded

Affirmation

Simple form	V-ing form
I could presurround you could presurround he could presurround we could presurround you could presurround they could presurround	I could be presurrounding you could be presurrounding he could be presurrounding we could be presurrounding you could be presurrounding they could be presurrounding
Perfect	V-ing perfect
I could have presurrounded you could have presurrounded he could have presurrounded we could have presurrounded you could have presurrounded they could have presurrounded	I could have been presurrounding you could have been presurrounding he could have been presurrounding we could have been presurrounding you could have been presurrounding they could have been presurrounding

Negation

Simple form	V-ing form
I couldn't presurround you couldn't presurround he couldn't presurround we couldn't presurround you couldn't presurround they couldn't presurround	I couldn't be presurrounding you couldn't be presurrounding he couldn't be presurrounding we couldn't be presurrounding you couldn't be presurrounding they couldn't be presurrounding
Perfect	V-ing perfect
I couldn't have presurrounded you couldn't have presurrounded he couldn't have presurrounded we couldn't have presurrounded you couldn't have presurrounded they couldn't have presurrounded	I couldn't have been presurrounding you couldn't have been presurrounding he couldn't have been presurrounding we couldn't have been presurrounding you couldn't have been presurrounding they couldn't have been presurrounding

Interrogative form

Simple form	V-ing form
could I presurround? could you presurround? could he presurround? could we presurround? could you presurround? could they presurround?	could I be presurrounding? could you be presurrounding? could he be presurrounding? could we be presurrounding? could you be presurrounding? could they be presurrounding?
Perfect	V-ing perfect
could I have presurrounded? could you have presurrounded? could he have presurrounded? could we have presurrounded? could you have presurrounded? could they have presurrounded?	could I have been presurrounding? could you have been presurrounding? could he have been presurrounding? could we have been presurrounding? could you have been presurrounding? could they have been presurrounding?

Interro-negative form

Simple form	V-ing form
couldn't I presurround? couldn't you presurround? couldn't he presurround? couldn't we presurround? couldn't you presurround? couldn't they presurround?	couldn't I be presurrounding? couldn't you be presurrounding? couldn't he be presurrounding? couldn't we be presurrounding? couldn't you be presurrounding? couldn't they be presurrounding?
Perfect	V-ing perfect
couldn't I have presurrounded? couldn't you have presurrounded? couldn't he have presurrounded? couldn't we have presurrounded? couldn't you have presurrounded? couldn't they have presurrounded?	couldn't I have been presurrounding? couldn't you have been presurrounding? couldn't he have been presurrounding? couldn't we have been presurrounding? couldn't you have been presurrounding? couldn't they have been presurrounding?