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female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation COULD INDEX

Regular verb: index - indexed - indexed


Affirmation

Simple form
I could index
you could index
he could index
we could index
you could index
they could index
V-ing form
I could be indexing
you could be indexing
he could be indexing
we could be indexing
you could be indexing
they could be indexing
Perfect
I could have indexed
you could have indexed
he could have indexed
we could have indexed
you could have indexed
they could have indexed
V-ing perfect
I could have been indexing
you could have been indexing
he could have been indexing
we could have been indexing
you could have been indexing
they could have been indexing

Negation

Simple form
I couldn't index
you couldn't index
he couldn't index
we couldn't index
you couldn't index
they couldn't index
V-ing form
I couldn't be indexing
you couldn't be indexing
he couldn't be indexing
we couldn't be indexing
you couldn't be indexing
they couldn't be indexing
Perfect
I couldn't have indexed
you couldn't have indexed
he couldn't have indexed
we couldn't have indexed
you couldn't have indexed
they couldn't have indexed
V-ing perfect
I couldn't have been indexing
you couldn't have been indexing
he couldn't have been indexing
we couldn't have been indexing
you couldn't have been indexing
they couldn't have been indexing

Interrogative form

Simple form
could I index?
could you index?
could he index?
could we index?
could you index?
could they index?
V-ing form
could I be indexing?
could you be indexing?
could he be indexing?
could we be indexing?
could you be indexing?
could they be indexing?
Perfect
could I have indexed?
could you have indexed?
could he have indexed?
could we have indexed?
could you have indexed?
could they have indexed?
V-ing perfect
could I have been indexing?
could you have been indexing?
could he have been indexing?
could we have been indexing?
could you have been indexing?
could they have been indexing?

Interro-negative form

Simple form
couldn't I index?
couldn't you index?
couldn't he index?
couldn't we index?
couldn't you index?
couldn't they index?
V-ing form
couldn't I be indexing?
couldn't you be indexing?
couldn't he be indexing?
couldn't we be indexing?
couldn't you be indexing?
couldn't they be indexing?
Perfect
couldn't I have indexed?
couldn't you have indexed?
couldn't he have indexed?
couldn't we have indexed?
couldn't you have indexed?
couldn't they have indexed?
V-ing perfect
couldn't I have been indexing?
couldn't you have been indexing?
couldn't he have been indexing?
couldn't we have been indexing?
couldn't you have been indexing?
couldn't they have been indexing?