I could green-light you could green-light he could green-light we could green-light you could green-light they could green-light
V-ing form
I could be green-lighting you could be green-lighting he could be green-lighting we could be green-lighting you could be green-lighting they could be green-lighting
Perfect
I could have green-lighted you could have green-lighted he could have green-lighted we could have green-lighted you could have green-lighted they could have green-lighted
V-ing perfect
I could have been green-lighting you could have been green-lighting he could have been green-lighting we could have been green-lighting you could have been green-lighting they could have been green-lighting
Negation
Simple form
I couldn't green-light you couldn't green-light he couldn't green-light we couldn't green-light you couldn't green-light they couldn't green-light
V-ing form
I couldn't be green-lighting you couldn't be green-lighting he couldn't be green-lighting we couldn't be green-lighting you couldn't be green-lighting they couldn't be green-lighting
Perfect
I couldn't have green-lighted you couldn't have green-lighted he couldn't have green-lighted we couldn't have green-lighted you couldn't have green-lighted they couldn't have green-lighted
V-ing perfect
I couldn't have been green-lighting you couldn't have been green-lighting he couldn't have been green-lighting we couldn't have been green-lighting you couldn't have been green-lighting they couldn't have been green-lighting
Interrogative form
Simple form
could I green-light? could you green-light? could he green-light? could we green-light? could you green-light? could they green-light?
V-ing form
could I be green-lighting? could you be green-lighting? could he be green-lighting? could we be green-lighting? could you be green-lighting? could they be green-lighting?
Perfect
could I have green-lighted? could you have green-lighted? could he have green-lighted? could we have green-lighted? could you have green-lighted? could they have green-lighted?
V-ing perfect
could I have been green-lighting? could you have been green-lighting? could he have been green-lighting? could we have been green-lighting? could you have been green-lighting? could they have been green-lighting?
Interro-negative form
Simple form
couldn't I green-light? couldn't you green-light? couldn't he green-light? couldn't we green-light? couldn't you green-light? couldn't they green-light?
V-ing form
couldn't I be green-lighting? couldn't you be green-lighting? couldn't he be green-lighting? couldn't we be green-lighting? couldn't you be green-lighting? couldn't they be green-lighting?
Perfect
couldn't I have green-lighted? couldn't you have green-lighted? couldn't he have green-lighted? couldn't we have green-lighted? couldn't you have green-lighted? couldn't they have green-lighted?
V-ing perfect
couldn't I have been green-lighting? couldn't you have been green-lighting? couldn't he have been green-lighting? couldn't we have been green-lighting? couldn't you have been green-lighting? couldn't they have been green-lighting?