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 couldn't synopsise you couldn't synopsise she couldn't synopsise we couldn't synopsise you couldn't synopsise they couldn't synopsise
V-ing form
I couldn't be synopsising you couldn't be synopsising she couldn't be synopsising we couldn't be synopsising you couldn't be synopsising they couldn't be synopsising
Perfect
I couldn't have synopsised you couldn't have synopsised she couldn't have synopsised we couldn't have synopsised you couldn't have synopsised they couldn't have synopsised
V-ing perfect
I couldn't have been synopsising you couldn't have been synopsising she couldn't have been synopsising we couldn't have been synopsising you couldn't have been synopsising they couldn't 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
couldn't I synopsise? couldn't you synopsise? couldn't she synopsise? couldn't we synopsise? couldn't you synopsise? couldn't they synopsise?
V-ing form
couldn't I be synopsising? couldn't you be synopsising? couldn't she be synopsising? couldn't we be synopsising? couldn't you be synopsising? couldn't they be synopsising?
Perfect
couldn't I have synopsised? couldn't you have synopsised? couldn't she have synopsised? couldn't we have synopsised? couldn't you have synopsised? couldn't they have synopsised?
V-ing perfect
couldn't I have been synopsising? couldn't you have been synopsising? couldn't she have been synopsising? couldn't we have been synopsising? couldn't you have been synopsising? couldn't they have been synopsising?