English verb conjugation
COULD RATIONALISE

Regular verb: rationalise - rationalised - rationalised

Affirmation

Simple form	V-ing form
I could rationalise you could rationalise he could rationalise we could rationalise you could rationalise they could rationalise	I could be rationalising you could be rationalising he could be rationalising we could be rationalising you could be rationalising they could be rationalising
Perfect	V-ing perfect
I could have rationalised you could have rationalised he could have rationalised we could have rationalised you could have rationalised they could have rationalised	I could have been rationalising you could have been rationalising he could have been rationalising we could have been rationalising you could have been rationalising they could have been rationalising

Negation

Simple form	V-ing form
I could not rationalise you could not rationalise he could not rationalise we could not rationalise you could not rationalise they could not rationalise	I could not be rationalising you could not be rationalising he could not be rationalising we could not be rationalising you could not be rationalising they could not be rationalising
Perfect	V-ing perfect
I could not have rationalised you could not have rationalised he could not have rationalised we could not have rationalised you could not have rationalised they could not have rationalised	I could not have been rationalising you could not have been rationalising he 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	V-ing form
could I rationalise? could you rationalise? could he rationalise? could we rationalise? could you rationalise? could they rationalise?	could I be rationalising? could you be rationalising? could he be rationalising? could we be rationalising? could you be rationalising? could they be rationalising?
Perfect	V-ing perfect
could I have rationalised? could you have rationalised? could he have rationalised? could we have rationalised? could you have rationalised? could they have rationalised?	could I have been rationalising? could you have been rationalising? could he have been rationalising? could we have been rationalising? could you have been rationalising? could they have been rationalising?

Interro-negative form

Simple form	V-ing form
could I not rationalise? could you not rationalise? could he not rationalise? could we not rationalise? could you not rationalise? could they not rationalise?	could I not be rationalising? could you not be rationalising? could he not be rationalising? could we not be rationalising? could you not be rationalising? could they not be rationalising?
Perfect	V-ing perfect
could I not have rationalised? could you not have rationalised? could he not have rationalised? could we not have rationalised? could you not have rationalised? could they not have rationalised?	could I not have been rationalising? could you not have been rationalising? could he not have been rationalising? could we not have been rationalising? could you not have been rationalising? could they not have been rationalising?