English verb conjugation
COULD PRISE

Regular verb: prise - prised - prised

Affirmation

Simple form	V-ing form
I could prise you could prise he could prise we could prise you could prise they could prise	I could be prising you could be prising he could be prising we could be prising you could be prising they could be prising
Perfect	V-ing perfect
I could have prised you could have prised he could have prised we could have prised you could have prised they could have prised	I could have been prising you could have been prising he could have been prising we could have been prising you could have been prising they could have been prising

Negation

Simple form	V-ing form
I could not prise you could not prise he could not prise we could not prise you could not prise they could not prise	I could not be prising you could not be prising he could not be prising we could not be prising you could not be prising they could not be prising
Perfect	V-ing perfect
I could not have prised you could not have prised he could not have prised we could not have prised you could not have prised they could not have prised	I could not have been prising you could not have been prising he could not have been prising we could not have been prising you could not have been prising they could not have been prising

Interrogative form

Simple form	V-ing form
could I prise? could you prise? could he prise? could we prise? could you prise? could they prise?	could I be prising? could you be prising? could he be prising? could we be prising? could you be prising? could they be prising?
Perfect	V-ing perfect
could I have prised? could you have prised? could he have prised? could we have prised? could you have prised? could they have prised?	could I have been prising? could you have been prising? could he have been prising? could we have been prising? could you have been prising? could they have been prising?

Interro-negative form

Simple form	V-ing form
could I not prise? could you not prise? could he not prise? could we not prise? could you not prise? could they not prise?	could I not be prising? could you not be prising? could he not be prising? could we not be prising? could you not be prising? could they not be prising?
Perfect	V-ing perfect
could I not have prised? could you not have prised? could he not have prised? could we not have prised? could you not have prised? could they not have prised?	could I not have been prising? could you not have been prising? could he not have been prising? could we not have been prising? could you not have been prising? could they not have been prising?