English verb conjugation COULD REFERENCE

Regular verb: reference - referenced - referenced

Affirmation

Simple form

I could reference
you could reference
he could reference
we could reference
you could reference
they could reference

V-ing form

I could be referencing
you could be referencing
he could be referencing
we could be referencing
you could be referencing
they could be referencing

Perfect

I could have referenced
you could have referenced
he could have referenced
we could have referenced
you could have referenced
they could have referenced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I reference?
could you reference?
could he reference?
could we reference?
could you reference?
could they reference?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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