English verb conjugation
COULD RESTRICT

Regular verb: restrict - restricted - restricted

Affirmation

Simple form	V-ing form
I could restrict you could restrict she could restrict we could restrict you could restrict they could restrict	I could be restricting you could be restricting she could be restricting we could be restricting you could be restricting they could be restricting
Perfect	V-ing perfect
I could have restricted you could have restricted she could have restricted we could have restricted you could have restricted they could have restricted	I could have been restricting you could have been restricting she could have been restricting we could have been restricting you could have been restricting they could have been restricting

Negation

Simple form	V-ing form
I couldn't restrict you couldn't restrict she couldn't restrict we couldn't restrict you couldn't restrict they couldn't restrict	I couldn't be restricting you couldn't be restricting she couldn't be restricting we couldn't be restricting you couldn't be restricting they couldn't be restricting
Perfect	V-ing perfect
I couldn't have restricted you couldn't have restricted she couldn't have restricted we couldn't have restricted you couldn't have restricted they couldn't have restricted	I couldn't have been restricting you couldn't have been restricting she couldn't have been restricting we couldn't have been restricting you couldn't have been restricting they couldn't have been restricting

Interrogative form

Simple form	V-ing form
could I restrict? could you restrict? could she restrict? could we restrict? could you restrict? could they restrict?	could I be restricting? could you be restricting? could she be restricting? could we be restricting? could you be restricting? could they be restricting?
Perfect	V-ing perfect
could I have restricted? could you have restricted? could she have restricted? could we have restricted? could you have restricted? could they have restricted?	could I have been restricting? could you have been restricting? could she have been restricting? could we have been restricting? could you have been restricting? could they have been restricting?

Interro-negative form

Simple form	V-ing form
couldn't I restrict? couldn't you restrict? couldn't she restrict? couldn't we restrict? couldn't you restrict? couldn't they restrict?	couldn't I be restricting? couldn't you be restricting? couldn't she be restricting? couldn't we be restricting? couldn't you be restricting? couldn't they be restricting?
Perfect	V-ing perfect
couldn't I have restricted? couldn't you have restricted? couldn't she have restricted? couldn't we have restricted? couldn't you have restricted? couldn't they have restricted?	couldn't I have been restricting? couldn't you have been restricting? couldn't she have been restricting? couldn't we have been restricting? couldn't you have been restricting? couldn't they have been restricting?