I could formularise you could formularise he could formularise we could formularise you could formularise they could formularise
V-ing form
I could be formularising you could be formularising he could be formularising we could be formularising you could be formularising they could be formularising
Perfect
I could have formularised you could have formularised he could have formularised we could have formularised you could have formularised they could have formularised
V-ing perfect
I could have been formularising you could have been formularising he could have been formularising we could have been formularising you could have been formularising they could have been formularising
Negation
Simple form
I could not formularise you could not formularise he could not formularise we could not formularise you could not formularise they could not formularise
V-ing form
I could not be formularising you could not be formularising he could not be formularising we could not be formularising you could not be formularising they could not be formularising
Perfect
I could not have formularised you could not have formularised he could not have formularised we could not have formularised you could not have formularised they could not have formularised
V-ing perfect
I could not have been formularising you could not have been formularising he could not have been formularising we could not have been formularising you could not have been formularising they could not have been formularising
Interrogative form
Simple form
could I formularise? could you formularise? could he formularise? could we formularise? could you formularise? could they formularise?
V-ing form
could I be formularising? could you be formularising? could he be formularising? could we be formularising? could you be formularising? could they be formularising?
Perfect
could I have formularised? could you have formularised? could he have formularised? could we have formularised? could you have formularised? could they have formularised?
V-ing perfect
could I have been formularising? could you have been formularising? could he have been formularising? could we have been formularising? could you have been formularising? could they have been formularising?
Interro-negative form
Simple form
could I not formularise? could you not formularise? could he not formularise? could we not formularise? could you not formularise? could they not formularise?
V-ing form
could I not be formularising? could you not be formularising? could he not be formularising? could we not be formularising? could you not be formularising? could they not be formularising?
Perfect
could I not have formularised? could you not have formularised? could he not have formularised? could we not have formularised? could you not have formularised? could they not have formularised?
V-ing perfect
could I not have been formularising? could you not have been formularising? could he not have been formularising? could we not have been formularising? could you not have been formularising? could they not have been formularising?