I could synopsise you could synopsise she could synopsise we could synopsise you could synopsise they could synopsise
V-ing form
I could be synopsising you could be synopsising she could be synopsising we could be synopsising you could be synopsising they could be synopsising
Perfect
I could have synopsised you could have synopsised she could have synopsised we could have synopsised you could have synopsised they could have synopsised
V-ing perfect
I could have been synopsising you could have been synopsising she could have been synopsising we could have been synopsising you could have been synopsising they could have been synopsising
Negation
Simple form
I could not synopsise you could not synopsise she could not synopsise we could not synopsise you could not synopsise they could not synopsise
V-ing form
I could not be synopsising you could not be synopsising she could not be synopsising we could not be synopsising you could not be synopsising they could not be synopsising
Perfect
I could not have synopsised you could not have synopsised she could not have synopsised we could not have synopsised you could not have synopsised they could not have synopsised
V-ing perfect
I could not have been synopsising you could not have been synopsising she could not have been synopsising we could not have been synopsising you could not have been synopsising they could not have been synopsising
Interrogative form
Simple form
could I synopsise? could you synopsise? could she synopsise? could we synopsise? could you synopsise? could they synopsise?
V-ing form
could I be synopsising? could you be synopsising? could she be synopsising? could we be synopsising? could you be synopsising? could they be synopsising?
Perfect
could I have synopsised? could you have synopsised? could she have synopsised? could we have synopsised? could you have synopsised? could they have synopsised?
V-ing perfect
could I have been synopsising? could you have been synopsising? could she have been synopsising? could we have been synopsising? could you have been synopsising? could they have been synopsising?
Interro-negative form
Simple form
could I not synopsise? could you not synopsise? could she not synopsise? could we not synopsise? could you not synopsise? could they not synopsise?
V-ing form
could I not be synopsising? could you not be synopsising? could she not be synopsising? could we not be synopsising? could you not be synopsising? could they not be synopsising?
Perfect
could I not have synopsised? could you not have synopsised? could she not have synopsised? could we not have synopsised? could you not have synopsised? could they not have synopsised?
V-ing perfect
could I not have been synopsising? could you not have been synopsising? could she not have been synopsising? could we not have been synopsising? could you not have been synopsising? could they not have been synopsising?