English verb conjugation COULD INSTRUMENT

Regular verb: instrument - instrumented - instrumented

Affirmation

Simple form

I could instrument
you could instrument
he could instrument
we could instrument
you could instrument
they could instrument

V-ing form

I could be instrumenting
you could be instrumenting
he could be instrumenting
we could be instrumenting
you could be instrumenting
they could be instrumenting

Perfect

I could have instrumented
you could have instrumented
he could have instrumented
we could have instrumented
you could have instrumented
they could have instrumented

V-ing perfect

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

Negation

Simple form

I couldn't instrument
you couldn't instrument
he couldn't instrument
we couldn't instrument
you couldn't instrument
they couldn't instrument

V-ing form

I couldn't be instrumenting
you couldn't be instrumenting
he couldn't be instrumenting
we couldn't be instrumenting
you couldn't be instrumenting
they couldn't be instrumenting

Perfect

I couldn't have instrumented
you couldn't have instrumented
he couldn't have instrumented
we couldn't have instrumented
you couldn't have instrumented
they couldn't have instrumented

V-ing perfect

I couldn't have been instrumenting
you couldn't have been instrumenting
he couldn't have been instrumenting
we couldn't have been instrumenting
you couldn't have been instrumenting
they couldn't have been instrumenting

Interrogative form

Simple form

could I instrument?
could you instrument?
could he instrument?
could we instrument?
could you instrument?
could they instrument?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I instrument?
couldn't you instrument?
couldn't he instrument?
couldn't we instrument?
couldn't you instrument?
couldn't they instrument?

V-ing form

couldn't I be instrumenting?
couldn't you be instrumenting?
couldn't he be instrumenting?
couldn't we be instrumenting?
couldn't you be instrumenting?
couldn't they be instrumenting?

Perfect

couldn't I have instrumented?
couldn't you have instrumented?
couldn't he have instrumented?
couldn't we have instrumented?
couldn't you have instrumented?
couldn't they have instrumented?

V-ing perfect

couldn't I have been instrumenting?
couldn't you have been instrumenting?
couldn't he have been instrumenting?
couldn't we have been instrumenting?
couldn't you have been instrumenting?
couldn't they have been instrumenting?

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