English verb conjugation
COULD EXTERNALISE

Regular verb: externalise - externalised - externalised

Affirmation

Simple form	V-ing form
I could externalise you could externalise she could externalise we could externalise you could externalise they could externalise	I could be externalising you could be externalising she could be externalising we could be externalising you could be externalising they could be externalising
Perfect	V-ing perfect
I could have externalised you could have externalised she could have externalised we could have externalised you could have externalised they could have externalised	I could have been externalising you could have been externalising she could have been externalising we could have been externalising you could have been externalising they could have been externalising

Negation

Simple form	V-ing form
I could not externalise you could not externalise she could not externalise we could not externalise you could not externalise they could not externalise	I could not be externalising you could not be externalising she could not be externalising we could not be externalising you could not be externalising they could not be externalising
Perfect	V-ing perfect
I could not have externalised you could not have externalised she could not have externalised we could not have externalised you could not have externalised they could not have externalised	I could not have been externalising you could not have been externalising she could not have been externalising we could not have been externalising you could not have been externalising they could not have been externalising

Interrogative form

Simple form	V-ing form
could I externalise? could you externalise? could she externalise? could we externalise? could you externalise? could they externalise?	could I be externalising? could you be externalising? could she be externalising? could we be externalising? could you be externalising? could they be externalising?
Perfect	V-ing perfect
could I have externalised? could you have externalised? could she have externalised? could we have externalised? could you have externalised? could they have externalised?	could I have been externalising? could you have been externalising? could she have been externalising? could we have been externalising? could you have been externalising? could they have been externalising?

Interro-negative form

Simple form	V-ing form
could I not externalise? could you not externalise? could she not externalise? could we not externalise? could you not externalise? could they not externalise?	could I not be externalising? could you not be externalising? could she not be externalising? could we not be externalising? could you not be externalising? could they not be externalising?
Perfect	V-ing perfect
could I not have externalised? could you not have externalised? could she not have externalised? could we not have externalised? could you not have externalised? could they not have externalised?	could I not have been externalising? could you not have been externalising? could she not have been externalising? could we not have been externalising? could you not have been externalising? could they not have been externalising?