English verb conjugation COULD ENDEAVOUR

Regular verb: endeavour - endeavoured - endeavoured

Affirmation

Simple form

I could endeavour
you could endeavour
he could endeavour
we could endeavour
you could endeavour
they could endeavour

V-ing form

I could be endeavouring
you could be endeavouring
he could be endeavouring
we could be endeavouring
you could be endeavouring
they could be endeavouring

Perfect

I could have endeavoured
you could have endeavoured
he could have endeavoured
we could have endeavoured
you could have endeavoured
they could have endeavoured

V-ing perfect

I could have been endeavouring
you could have been endeavouring
he could have been endeavouring
we could have been endeavouring
you could have been endeavouring
they could have been endeavouring

Negation

Simple form

I could not endeavour
you could not endeavour
he could not endeavour
we could not endeavour
you could not endeavour
they could not endeavour

V-ing form

I could not be endeavouring
you could not be endeavouring
he could not be endeavouring
we could not be endeavouring
you could not be endeavouring
they could not be endeavouring

Perfect

I could not have endeavoured
you could not have endeavoured
he could not have endeavoured
we could not have endeavoured
you could not have endeavoured
they could not have endeavoured

V-ing perfect

I could not have been endeavouring
you could not have been endeavouring
he could not have been endeavouring
we could not have been endeavouring
you could not have been endeavouring
they could not have been endeavouring

Interrogative form

Simple form

could I endeavour?
could you endeavour?
could he endeavour?
could we endeavour?
could you endeavour?
could they endeavour?

V-ing form

could I be endeavouring?
could you be endeavouring?
could he be endeavouring?
could we be endeavouring?
could you be endeavouring?
could they be endeavouring?

Perfect

could I have endeavoured?
could you have endeavoured?
could he have endeavoured?
could we have endeavoured?
could you have endeavoured?
could they have endeavoured?

V-ing perfect

could I have been endeavouring?
could you have been endeavouring?
could he have been endeavouring?
could we have been endeavouring?
could you have been endeavouring?
could they have been endeavouring?

Interro-negative form

Simple form

could I not endeavour?
could you not endeavour?
could he not endeavour?
could we not endeavour?
could you not endeavour?
could they not endeavour?

V-ing form

could I not be endeavouring?
could you not be endeavouring?
could he not be endeavouring?
could we not be endeavouring?
could you not be endeavouring?
could they not be endeavouring?

Perfect

could I not have endeavoured?
could you not have endeavoured?
could he not have endeavoured?
could we not have endeavoured?
could you not have endeavoured?
could they not have endeavoured?

V-ing perfect

could I not have been endeavouring?
could you not have been endeavouring?
could he not have been endeavouring?
could we not have been endeavouring?
could you not have been endeavouring?
could they not have been endeavouring?

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