I could copolymerise you could copolymerise he could copolymerise we could copolymerise you could copolymerise they could copolymerise
V-ing form
I could be copolymerising you could be copolymerising he could be copolymerising we could be copolymerising you could be copolymerising they could be copolymerising
Perfect
I could have copolymerised you could have copolymerised he could have copolymerised we could have copolymerised you could have copolymerised they could have copolymerised
V-ing perfect
I could have been copolymerising you could have been copolymerising he could have been copolymerising we could have been copolymerising you could have been copolymerising they could have been copolymerising
Negation
Simple form
I could not copolymerise you could not copolymerise he could not copolymerise we could not copolymerise you could not copolymerise they could not copolymerise
V-ing form
I could not be copolymerising you could not be copolymerising he could not be copolymerising we could not be copolymerising you could not be copolymerising they could not be copolymerising
Perfect
I could not have copolymerised you could not have copolymerised he could not have copolymerised we could not have copolymerised you could not have copolymerised they could not have copolymerised
V-ing perfect
I could not have been copolymerising you could not have been copolymerising he could not have been copolymerising we could not have been copolymerising you could not have been copolymerising they could not have been copolymerising
Interrogative form
Simple form
could I copolymerise? could you copolymerise? could he copolymerise? could we copolymerise? could you copolymerise? could they copolymerise?
V-ing form
could I be copolymerising? could you be copolymerising? could he be copolymerising? could we be copolymerising? could you be copolymerising? could they be copolymerising?
Perfect
could I have copolymerised? could you have copolymerised? could he have copolymerised? could we have copolymerised? could you have copolymerised? could they have copolymerised?
V-ing perfect
could I have been copolymerising? could you have been copolymerising? could he have been copolymerising? could we have been copolymerising? could you have been copolymerising? could they have been copolymerising?
Interro-negative form
Simple form
could I not copolymerise? could you not copolymerise? could he not copolymerise? could we not copolymerise? could you not copolymerise? could they not copolymerise?
V-ing form
could I not be copolymerising? could you not be copolymerising? could he not be copolymerising? could we not be copolymerising? could you not be copolymerising? could they not be copolymerising?
Perfect
could I not have copolymerised? could you not have copolymerised? could he not have copolymerised? could we not have copolymerised? could you not have copolymerised? could they not have copolymerised?
V-ing perfect
could I not have been copolymerising? could you not have been copolymerising? could he not have been copolymerising? could we not have been copolymerising? could you not have been copolymerising? could they not have been copolymerising?