I could meter you could meter he could meter we could meter you could meter they could meter
V-ing form
I could be metering you could be metering he could be metering we could be metering you could be metering they could be metering
Perfect
I could have metered you could have metered he could have metered we could have metered you could have metered they could have metered
V-ing perfect
I could have been metering you could have been metering he could have been metering we could have been metering you could have been metering they could have been metering
Negation
Simple form
I could not meter you could not meter he could not meter we could not meter you could not meter they could not meter
V-ing form
I could not be metering you could not be metering he could not be metering we could not be metering you could not be metering they could not be metering
Perfect
I could not have metered you could not have metered he could not have metered we could not have metered you could not have metered they could not have metered
V-ing perfect
I could not have been metering you could not have been metering he could not have been metering we could not have been metering you could not have been metering they could not have been metering
Interrogative form
Simple form
could I meter? could you meter? could he meter? could we meter? could you meter? could they meter?
V-ing form
could I be metering? could you be metering? could he be metering? could we be metering? could you be metering? could they be metering?
Perfect
could I have metered? could you have metered? could he have metered? could we have metered? could you have metered? could they have metered?
V-ing perfect
could I have been metering? could you have been metering? could he have been metering? could we have been metering? could you have been metering? could they have been metering?
Interro-negative form
Simple form
could I not meter? could you not meter? could he not meter? could we not meter? could you not meter? could they not meter?
V-ing form
could I not be metering? could you not be metering? could he not be metering? could we not be metering? could you not be metering? could they not be metering?
Perfect
could I not have metered? could you not have metered? could he not have metered? could we not have metered? could you not have metered? could they not have metered?
V-ing perfect
could I not have been metering? could you not have been metering? could he not have been metering? could we not have been metering? could you not have been metering? could they not have been metering?