I could particularise you could particularise he could particularise we could particularise you could particularise they could particularise
V-ing form
I could be particularising you could be particularising he could be particularising we could be particularising you could be particularising they could be particularising
Perfect
I could have particularised you could have particularised he could have particularised we could have particularised you could have particularised they could have particularised
V-ing perfect
I could have been particularising you could have been particularising he could have been particularising we could have been particularising you could have been particularising they could have been particularising
Negation
Simple form
I could not particularise you could not particularise he could not particularise we could not particularise you could not particularise they could not particularise
V-ing form
I could not be particularising you could not be particularising he could not be particularising we could not be particularising you could not be particularising they could not be particularising
Perfect
I could not have particularised you could not have particularised he could not have particularised we could not have particularised you could not have particularised they could not have particularised
V-ing perfect
I could not have been particularising you could not have been particularising he could not have been particularising we could not have been particularising you could not have been particularising they could not have been particularising
Interrogative form
Simple form
could I particularise? could you particularise? could he particularise? could we particularise? could you particularise? could they particularise?
V-ing form
could I be particularising? could you be particularising? could he be particularising? could we be particularising? could you be particularising? could they be particularising?
Perfect
could I have particularised? could you have particularised? could he have particularised? could we have particularised? could you have particularised? could they have particularised?
V-ing perfect
could I have been particularising? could you have been particularising? could he have been particularising? could we have been particularising? could you have been particularising? could they have been particularising?
Interro-negative form
Simple form
could I not particularise? could you not particularise? could he not particularise? could we not particularise? could you not particularise? could they not particularise?
V-ing form
could I not be particularising? could you not be particularising? could he not be particularising? could we not be particularising? could you not be particularising? could they not be particularising?
Perfect
could I not have particularised? could you not have particularised? could he not have particularised? could we not have particularised? could you not have particularised? could they not have particularised?
V-ing perfect
could I not have been particularising? could you not have been particularising? could he not have been particularising? could we not have been particularising? could you not have been particularising? could they not have been particularising?