I could lounge you could lounge he could lounge we could lounge you could lounge they could lounge
V-ing form
I could be lounging you could be lounging he could be lounging we could be lounging you could be lounging they could be lounging
Perfect
I could have lounged you could have lounged he could have lounged we could have lounged you could have lounged they could have lounged
V-ing perfect
I could have been lounging you could have been lounging he could have been lounging we could have been lounging you could have been lounging they could have been lounging
Negation
Simple form
I could not lounge you could not lounge he could not lounge we could not lounge you could not lounge they could not lounge
V-ing form
I could not be lounging you could not be lounging he could not be lounging we could not be lounging you could not be lounging they could not be lounging
Perfect
I could not have lounged you could not have lounged he could not have lounged we could not have lounged you could not have lounged they could not have lounged
V-ing perfect
I could not have been lounging you could not have been lounging he could not have been lounging we could not have been lounging you could not have been lounging they could not have been lounging
Interrogative form
Simple form
could I lounge? could you lounge? could he lounge? could we lounge? could you lounge? could they lounge?
V-ing form
could I be lounging? could you be lounging? could he be lounging? could we be lounging? could you be lounging? could they be lounging?
Perfect
could I have lounged? could you have lounged? could he have lounged? could we have lounged? could you have lounged? could they have lounged?
V-ing perfect
could I have been lounging? could you have been lounging? could he have been lounging? could we have been lounging? could you have been lounging? could they have been lounging?
Interro-negative form
Simple form
could I not lounge? could you not lounge? could he not lounge? could we not lounge? could you not lounge? could they not lounge?
V-ing form
could I not be lounging? could you not be lounging? could he not be lounging? could we not be lounging? could you not be lounging? could they not be lounging?
Perfect
could I not have lounged? could you not have lounged? could he not have lounged? could we not have lounged? could you not have lounged? could they not have lounged?
V-ing perfect
could I not have been lounging? could you not have been lounging? could he not have been lounging? could we not have been lounging? could you not have been lounging? could they not have been lounging?