female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD ENDEAVOR
Regular verb: endeavor - endeavored - endeavored
Affirmation
Simple form
I could endeavoryou could endeavor
he could endeavor
we could endeavor
you could endeavor
they could endeavor
V-ing form
I could be endeavoringyou could be endeavoring
he could be endeavoring
we could be endeavoring
you could be endeavoring
they could be endeavoring
Perfect
I could have endeavoredyou could have endeavored
he could have endeavored
we could have endeavored
you could have endeavored
they could have endeavored
V-ing perfect
I could have been endeavoringyou could have been endeavoring
he could have been endeavoring
we could have been endeavoring
you could have been endeavoring
they could have been endeavoring
Negation
Simple form
I couldn't endeavoryou couldn't endeavor
he couldn't endeavor
we couldn't endeavor
you couldn't endeavor
they couldn't endeavor
V-ing form
I couldn't be endeavoringyou couldn't be endeavoring
he couldn't be endeavoring
we couldn't be endeavoring
you couldn't be endeavoring
they couldn't be endeavoring
Perfect
I couldn't have endeavoredyou couldn't have endeavored
he couldn't have endeavored
we couldn't have endeavored
you couldn't have endeavored
they couldn't have endeavored
V-ing perfect
I couldn't have been endeavoringyou couldn't have been endeavoring
he couldn't have been endeavoring
we couldn't have been endeavoring
you couldn't have been endeavoring
they couldn't have been endeavoring
Interrogative form
Simple form
could I endeavor?could you endeavor?
could he endeavor?
could we endeavor?
could you endeavor?
could they endeavor?
V-ing form
could I be endeavoring?could you be endeavoring?
could he be endeavoring?
could we be endeavoring?
could you be endeavoring?
could they be endeavoring?
Perfect
could I have endeavored?could you have endeavored?
could he have endeavored?
could we have endeavored?
could you have endeavored?
could they have endeavored?
V-ing perfect
could I have been endeavoring?could you have been endeavoring?
could he have been endeavoring?
could we have been endeavoring?
could you have been endeavoring?
could they have been endeavoring?
Interro-negative form
Simple form
couldn't I endeavor?couldn't you endeavor?
couldn't he endeavor?
couldn't we endeavor?
couldn't you endeavor?
couldn't they endeavor?
V-ing form
couldn't I be endeavoring?couldn't you be endeavoring?
couldn't he be endeavoring?
couldn't we be endeavoring?
couldn't you be endeavoring?
couldn't they be endeavoring?
Perfect
couldn't I have endeavored?couldn't you have endeavored?
couldn't he have endeavored?
couldn't we have endeavored?
couldn't you have endeavored?
couldn't they have endeavored?
V-ing perfect
couldn't I have been endeavoring?couldn't you have been endeavoring?
couldn't he have been endeavoring?
couldn't we have been endeavoring?
couldn't you have been endeavoring?
couldn't they have been endeavoring?