English verb conjugation
COULD VITALISE

Regular verb: vitalise - vitalised - vitalised

Affirmation

Simple form	V-ing form
I could vitalise you could vitalise he could vitalise we could vitalise you could vitalise they could vitalise	I could be vitalising you could be vitalising he could be vitalising we could be vitalising you could be vitalising they could be vitalising
Perfect	V-ing perfect
I could have vitalised you could have vitalised he could have vitalised we could have vitalised you could have vitalised they could have vitalised	I could have been vitalising you could have been vitalising he could have been vitalising we could have been vitalising you could have been vitalising they could have been vitalising

Negation

Simple form	V-ing form
I could not vitalise you could not vitalise he could not vitalise we could not vitalise you could not vitalise they could not vitalise	I could not be vitalising you could not be vitalising he could not be vitalising we could not be vitalising you could not be vitalising they could not be vitalising
Perfect	V-ing perfect
I could not have vitalised you could not have vitalised he could not have vitalised we could not have vitalised you could not have vitalised they could not have vitalised	I could not have been vitalising you could not have been vitalising he could not have been vitalising we could not have been vitalising you could not have been vitalising they could not have been vitalising

Interrogative form

Simple form	V-ing form
could I vitalise? could you vitalise? could he vitalise? could we vitalise? could you vitalise? could they vitalise?	could I be vitalising? could you be vitalising? could he be vitalising? could we be vitalising? could you be vitalising? could they be vitalising?
Perfect	V-ing perfect
could I have vitalised? could you have vitalised? could he have vitalised? could we have vitalised? could you have vitalised? could they have vitalised?	could I have been vitalising? could you have been vitalising? could he have been vitalising? could we have been vitalising? could you have been vitalising? could they have been vitalising?

Interro-negative form

Simple form	V-ing form
could I not vitalise? could you not vitalise? could he not vitalise? could we not vitalise? could you not vitalise? could they not vitalise?	could I not be vitalising? could you not be vitalising? could he not be vitalising? could we not be vitalising? could you not be vitalising? could they not be vitalising?
Perfect	V-ing perfect
could I not have vitalised? could you not have vitalised? could he not have vitalised? could we not have vitalised? could you not have vitalised? could they not have vitalised?	could I not have been vitalising? could you not have been vitalising? could he not have been vitalising? could we not have been vitalising? could you not have been vitalising? could they not have been vitalising?