I could record you could record he could record we could record you could record they could record
V-ing form
I could be recording you could be recording he could be recording we could be recording you could be recording they could be recording
Perfect
I could have recorded you could have recorded he could have recorded we could have recorded you could have recorded they could have recorded
V-ing perfect
I could have been recording you could have been recording he could have been recording we could have been recording you could have been recording they could have been recording
Negation
Simple form
I couldn't record you couldn't record he couldn't record we couldn't record you couldn't record they couldn't record
V-ing form
I couldn't be recording you couldn't be recording he couldn't be recording we couldn't be recording you couldn't be recording they couldn't be recording
Perfect
I couldn't have recorded you couldn't have recorded he couldn't have recorded we couldn't have recorded you couldn't have recorded they couldn't have recorded
V-ing perfect
I couldn't have been recording you couldn't have been recording he couldn't have been recording we couldn't have been recording you couldn't have been recording they couldn't have been recording
Interrogative form
Simple form
could I record? could you record? could he record? could we record? could you record? could they record?
V-ing form
could I be recording? could you be recording? could he be recording? could we be recording? could you be recording? could they be recording?
Perfect
could I have recorded? could you have recorded? could he have recorded? could we have recorded? could you have recorded? could they have recorded?
V-ing perfect
could I have been recording? could you have been recording? could he have been recording? could we have been recording? could you have been recording? could they have been recording?
Interro-negative form
Simple form
couldn't I record? couldn't you record? couldn't he record? couldn't we record? couldn't you record? couldn't they record?
V-ing form
couldn't I be recording? couldn't you be recording? couldn't he be recording? couldn't we be recording? couldn't you be recording? couldn't they be recording?
Perfect
couldn't I have recorded? couldn't you have recorded? couldn't he have recorded? couldn't we have recorded? couldn't you have recorded? couldn't they have recorded?
V-ing perfect
couldn't I have been recording? couldn't you have been recording? couldn't he have been recording? couldn't we have been recording? couldn't you have been recording? couldn't they have been recording?