I could rationalise you could rationalise she could rationalise we could rationalise you could rationalise they could rationalise
V-ing form
I could be rationalising you could be rationalising she could be rationalising we could be rationalising you could be rationalising they could be rationalising
Perfect
I could have rationalised you could have rationalised she could have rationalised we could have rationalised you could have rationalised they could have rationalised
V-ing perfect
I could have been rationalising you could have been rationalising she could have been rationalising we could have been rationalising you could have been rationalising they could have been rationalising
Negation
Simple form
I could not rationalise you could not rationalise she could not rationalise we could not rationalise you could not rationalise they could not rationalise
V-ing form
I could not be rationalising you could not be rationalising she could not be rationalising we could not be rationalising you could not be rationalising they could not be rationalising
Perfect
I could not have rationalised you could not have rationalised she could not have rationalised we could not have rationalised you could not have rationalised they could not have rationalised
V-ing perfect
I could not have been rationalising you could not have been rationalising she could not have been rationalising we could not have been rationalising you could not have been rationalising they could not have been rationalising
Interrogative form
Simple form
could I rationalise? could you rationalise? could she rationalise? could we rationalise? could you rationalise? could they rationalise?
V-ing form
could I be rationalising? could you be rationalising? could she be rationalising? could we be rationalising? could you be rationalising? could they be rationalising?
Perfect
could I have rationalised? could you have rationalised? could she have rationalised? could we have rationalised? could you have rationalised? could they have rationalised?
V-ing perfect
could I have been rationalising? could you have been rationalising? could she have been rationalising? could we have been rationalising? could you have been rationalising? could they have been rationalising?
Interro-negative form
Simple form
could I not rationalise? could you not rationalise? could she not rationalise? could we not rationalise? could you not rationalise? could they not rationalise?
V-ing form
could I not be rationalising? could you not be rationalising? could she not be rationalising? could we not be rationalising? could you not be rationalising? could they not be rationalising?
Perfect
could I not have rationalised? could you not have rationalised? could she not have rationalised? could we not have rationalised? could you not have rationalised? could they not have rationalised?
V-ing perfect
could I not have been rationalising? could you not have been rationalising? could she not have been rationalising? could we not have been rationalising? could you not have been rationalising? could they not have been rationalising?