male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD VARY
Regular verb: vary - varied - varied
Affirmation
Simple form
I could varyyou could vary
she could vary
we could vary
you could vary
they could vary
V-ing form
I could be varyingyou could be varying
she could be varying
we could be varying
you could be varying
they could be varying
Perfect
I could have variedyou could have varied
she could have varied
we could have varied
you could have varied
they could have varied
V-ing perfect
I could have been varyingyou could have been varying
she could have been varying
we could have been varying
you could have been varying
they could have been varying
Negation
Simple form
I couldn't varyyou couldn't vary
she couldn't vary
we couldn't vary
you couldn't vary
they couldn't vary
V-ing form
I couldn't be varyingyou couldn't be varying
she couldn't be varying
we couldn't be varying
you couldn't be varying
they couldn't be varying
Perfect
I couldn't have variedyou couldn't have varied
she couldn't have varied
we couldn't have varied
you couldn't have varied
they couldn't have varied
V-ing perfect
I couldn't have been varyingyou couldn't have been varying
she couldn't have been varying
we couldn't have been varying
you couldn't have been varying
they couldn't have been varying
Interrogative form
Simple form
could I vary?could you vary?
could she vary?
could we vary?
could you vary?
could they vary?
V-ing form
could I be varying?could you be varying?
could she be varying?
could we be varying?
could you be varying?
could they be varying?
Perfect
could I have varied?could you have varied?
could she have varied?
could we have varied?
could you have varied?
could they have varied?
V-ing perfect
could I have been varying?could you have been varying?
could she have been varying?
could we have been varying?
could you have been varying?
could they have been varying?
Interro-negative form
Simple form
couldn't I vary?couldn't you vary?
couldn't she vary?
couldn't we vary?
couldn't you vary?
couldn't they vary?
V-ing form
couldn't I be varying?couldn't you be varying?
couldn't she be varying?
couldn't we be varying?
couldn't you be varying?
couldn't they be varying?
Perfect
couldn't I have varied?couldn't you have varied?
couldn't she have varied?
couldn't we have varied?
couldn't you have varied?
couldn't they have varied?
V-ing perfect
couldn't I have been varying?couldn't you have been varying?
couldn't she have been varying?
couldn't we have been varying?
couldn't you have been varying?
couldn't they have been varying?