English verb conjugation SHOULD BACK

Regular verb: back - backed - backed

Affirmation

Simple form

I should back
you should back
he should back
we should back
you should back
they should back

V-ing form

I should be backing
you should be backing
he should be backing
we should be backing
you should be backing
they should be backing

Perfect

I should have backed
you should have backed
he should have backed
we should have backed
you should have backed
they should have backed

V-ing perfect

I should have been backing
you should have been backing
he should have been backing
we should have been backing
you should have been backing
they should have been backing

Negation

Simple form

I should not back
you should not back
he should not back
we should not back
you should not back
they should not back

V-ing form

I should not be backing
you should not be backing
he should not be backing
we should not be backing
you should not be backing
they should not be backing

Perfect

I should not have backed
you should not have backed
he should not have backed
we should not have backed
you should not have backed
they should not have backed

V-ing perfect

I should not have been backing
you should not have been backing
he should not have been backing
we should not have been backing
you should not have been backing
they should not have been backing

Interrogative form

Simple form

should I back?
should you back?
should he back?
should we back?
should you back?
should they back?

V-ing form

should I be backing?
should you be backing?
should he be backing?
should we be backing?
should you be backing?
should they be backing?

Perfect

should I have backed?
should you have backed?
should he have backed?
should we have backed?
should you have backed?
should they have backed?

V-ing perfect

should I have been backing?
should you have been backing?
should he have been backing?
should we have been backing?
should you have been backing?
should they have been backing?

Interro-negative form

Simple form

should I not back?
should you not back?
should he not back?
should we not back?
should you not back?
should they not back?

V-ing form

should I not be backing?
should you not be backing?
should he not be backing?
should we not be backing?
should you not be backing?
should they not be backing?

Perfect

should I not have backed?
should you not have backed?
should he not have backed?
should we not have backed?
should you not have backed?
should they not have backed?

V-ing perfect

should I not have been backing?
should you not have been backing?
should he not have been backing?
should we not have been backing?
should you not have been backing?
should they not have been backing?

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