I could resystematise you could resystematise she could resystematise we could resystematise you could resystematise they could resystematise
V-ing form
I could be resystematising you could be resystematising she could be resystematising we could be resystematising you could be resystematising they could be resystematising
Perfect
I could have resystematised you could have resystematised she could have resystematised we could have resystematised you could have resystematised they could have resystematised
V-ing perfect
I could have been resystematising you could have been resystematising she could have been resystematising we could have been resystematising you could have been resystematising they could have been resystematising
Negation
Simple form
I could not resystematise you could not resystematise she could not resystematise we could not resystematise you could not resystematise they could not resystematise
V-ing form
I could not be resystematising you could not be resystematising she could not be resystematising we could not be resystematising you could not be resystematising they could not be resystematising
Perfect
I could not have resystematised you could not have resystematised she could not have resystematised we could not have resystematised you could not have resystematised they could not have resystematised
V-ing perfect
I could not have been resystematising you could not have been resystematising she could not have been resystematising we could not have been resystematising you could not have been resystematising they could not have been resystematising
Interrogative form
Simple form
could I resystematise? could you resystematise? could she resystematise? could we resystematise? could you resystematise? could they resystematise?
V-ing form
could I be resystematising? could you be resystematising? could she be resystematising? could we be resystematising? could you be resystematising? could they be resystematising?
Perfect
could I have resystematised? could you have resystematised? could she have resystematised? could we have resystematised? could you have resystematised? could they have resystematised?
V-ing perfect
could I have been resystematising? could you have been resystematising? could she have been resystematising? could we have been resystematising? could you have been resystematising? could they have been resystematising?
Interro-negative form
Simple form
could I not resystematise? could you not resystematise? could she not resystematise? could we not resystematise? could you not resystematise? could they not resystematise?
V-ing form
could I not be resystematising? could you not be resystematising? could she not be resystematising? could we not be resystematising? could you not be resystematising? could they not be resystematising?
Perfect
could I not have resystematised? could you not have resystematised? could she not have resystematised? could we not have resystematised? could you not have resystematised? could they not have resystematised?
V-ing perfect
could I not have been resystematising? could you not have been resystematising? could she not have been resystematising? could we not have been resystematising? could you not have been resystematising? could they not have been resystematising?