I could compact you could compact he could compact we could compact you could compact they could compact
V-ing form
I could be compacting you could be compacting he could be compacting we could be compacting you could be compacting they could be compacting
Perfect
I could have compacted you could have compacted he could have compacted we could have compacted you could have compacted they could have compacted
V-ing perfect
I could have been compacting you could have been compacting he could have been compacting we could have been compacting you could have been compacting they could have been compacting
Negation
Simple form
I could not compact you could not compact he could not compact we could not compact you could not compact they could not compact
V-ing form
I could not be compacting you could not be compacting he could not be compacting we could not be compacting you could not be compacting they could not be compacting
Perfect
I could not have compacted you could not have compacted he could not have compacted we could not have compacted you could not have compacted they could not have compacted
V-ing perfect
I could not have been compacting you could not have been compacting he could not have been compacting we could not have been compacting you could not have been compacting they could not have been compacting
Interrogative form
Simple form
could I compact? could you compact? could he compact? could we compact? could you compact? could they compact?
V-ing form
could I be compacting? could you be compacting? could he be compacting? could we be compacting? could you be compacting? could they be compacting?
Perfect
could I have compacted? could you have compacted? could he have compacted? could we have compacted? could you have compacted? could they have compacted?
V-ing perfect
could I have been compacting? could you have been compacting? could he have been compacting? could we have been compacting? could you have been compacting? could they have been compacting?
Interro-negative form
Simple form
could I not compact? could you not compact? could he not compact? could we not compact? could you not compact? could they not compact?
V-ing form
could I not be compacting? could you not be compacting? could he not be compacting? could we not be compacting? could you not be compacting? could they not be compacting?
Perfect
could I not have compacted? could you not have compacted? could he not have compacted? could we not have compacted? could you not have compacted? could they not have compacted?
V-ing perfect
could I not have been compacting? could you not have been compacting? could he not have been compacting? could we not have been compacting? could you not have been compacting? could they not have been compacting?