English verb conjugation
COULD SUBCATEGORISE

Regular verb: subcategorise - subcategorised - subcategorised

Affirmation

Simple form	V-ing form
I could subcategorise you could subcategorise she could subcategorise we could subcategorise you could subcategorise they could subcategorise	I could be subcategorising you could be subcategorising she could be subcategorising we could be subcategorising you could be subcategorising they could be subcategorising
Perfect	V-ing perfect
I could have subcategorised you could have subcategorised she could have subcategorised we could have subcategorised you could have subcategorised they could have subcategorised	I could have been subcategorising you could have been subcategorising she could have been subcategorising we could have been subcategorising you could have been subcategorising they could have been subcategorising

Negation

Simple form	V-ing form
I could not subcategorise you could not subcategorise she could not subcategorise we could not subcategorise you could not subcategorise they could not subcategorise	I could not be subcategorising you could not be subcategorising she could not be subcategorising we could not be subcategorising you could not be subcategorising they could not be subcategorising
Perfect	V-ing perfect
I could not have subcategorised you could not have subcategorised she could not have subcategorised we could not have subcategorised you could not have subcategorised they could not have subcategorised	I could not have been subcategorising you could not have been subcategorising she could not have been subcategorising we could not have been subcategorising you could not have been subcategorising they could not have been subcategorising

Interrogative form

Simple form	V-ing form
could I subcategorise? could you subcategorise? could she subcategorise? could we subcategorise? could you subcategorise? could they subcategorise?	could I be subcategorising? could you be subcategorising? could she be subcategorising? could we be subcategorising? could you be subcategorising? could they be subcategorising?
Perfect	V-ing perfect
could I have subcategorised? could you have subcategorised? could she have subcategorised? could we have subcategorised? could you have subcategorised? could they have subcategorised?	could I have been subcategorising? could you have been subcategorising? could she have been subcategorising? could we have been subcategorising? could you have been subcategorising? could they have been subcategorising?

Interro-negative form

Simple form	V-ing form
could I not subcategorise? could you not subcategorise? could she not subcategorise? could we not subcategorise? could you not subcategorise? could they not subcategorise?	could I not be subcategorising? could you not be subcategorising? could she not be subcategorising? could we not be subcategorising? could you not be subcategorising? could they not be subcategorising?
Perfect	V-ing perfect
could I not have subcategorised? could you not have subcategorised? could she not have subcategorised? could we not have subcategorised? could you not have subcategorised? could they not have subcategorised?	could I not have been subcategorising? could you not have been subcategorising? could she not have been subcategorising? could we not have been subcategorising? could you not have been subcategorising? could they not have been subcategorising?