English verb conjugation
COULD ECONOMISE

Regular verb: economise - economised - economised

Affirmation

Simple form	V-ing form
I could economise you could economise she could economise we could economise you could economise they could economise	I could be economising you could be economising she could be economising we could be economising you could be economising they could be economising
Perfect	V-ing perfect
I could have economised you could have economised she could have economised we could have economised you could have economised they could have economised	I could have been economising you could have been economising she could have been economising we could have been economising you could have been economising they could have been economising

Negation

Simple form	V-ing form
I could not economise you could not economise she could not economise we could not economise you could not economise they could not economise	I could not be economising you could not be economising she could not be economising we could not be economising you could not be economising they could not be economising
Perfect	V-ing perfect
I could not have economised you could not have economised she could not have economised we could not have economised you could not have economised they could not have economised	I could not have been economising you could not have been economising she could not have been economising we could not have been economising you could not have been economising they could not have been economising

Interrogative form

Simple form	V-ing form
could I economise? could you economise? could she economise? could we economise? could you economise? could they economise?	could I be economising? could you be economising? could she be economising? could we be economising? could you be economising? could they be economising?
Perfect	V-ing perfect
could I have economised? could you have economised? could she have economised? could we have economised? could you have economised? could they have economised?	could I have been economising? could you have been economising? could she have been economising? could we have been economising? could you have been economising? could they have been economising?

Interro-negative form

Simple form	V-ing form
could I not economise? could you not economise? could she not economise? could we not economise? could you not economise? could they not economise?	could I not be economising? could you not be economising? could she not be economising? could we not be economising? could you not be economising? could they not be economising?
Perfect	V-ing perfect
could I not have economised? could you not have economised? could she not have economised? could we not have economised? could you not have economised? could they not have economised?	could I not have been economising? could you not have been economising? could she not have been economising? could we not have been economising? could you not have been economising? could they not have been economising?