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 couldn't economise you couldn't economise she couldn't economise we couldn't economise you couldn't economise they couldn't economise	I couldn't be economising you couldn't be economising she couldn't be economising we couldn't be economising you couldn't be economising they couldn't be economising
Perfect	V-ing perfect
I couldn't have economised you couldn't have economised she couldn't have economised we couldn't have economised you couldn't have economised they couldn't have economised	I couldn't have been economising you couldn't have been economising she couldn't have been economising we couldn't have been economising you couldn't have been economising they couldn't 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
couldn't I economise? couldn't you economise? couldn't she economise? couldn't we economise? couldn't you economise? couldn't they economise?	couldn't I be economising? couldn't you be economising? couldn't she be economising? couldn't we be economising? couldn't you be economising? couldn't they be economising?
Perfect	V-ing perfect
couldn't I have economised? couldn't you have economised? couldn't she have economised? couldn't we have economised? couldn't you have economised? couldn't they have economised?	couldn't I have been economising? couldn't you have been economising? couldn't she have been economising? couldn't we have been economising? couldn't you have been economising? couldn't they have been economising?