English verb conjugation COULD STANDARDIZE

Regular verb: standardize - standardized - standardized

Affirmation

Simple form

I could standardize
you could standardize
he could standardize
we could standardize
you could standardize
they could standardize

V-ing form

I could be standardizing
you could be standardizing
he could be standardizing
we could be standardizing
you could be standardizing
they could be standardizing

Perfect

I could have standardized
you could have standardized
he could have standardized
we could have standardized
you could have standardized
they could have standardized

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I standardize?
could you standardize?
could he standardize?
could we standardize?
could you standardize?
could they standardize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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