English verb conjugation COULD STANDARDIZE

Regular verb: standardize - standardized - standardized

Affirmation

Simple form

I could standardize
you could standardize
she could standardize
we could standardize
you could standardize
they could standardize

V-ing form

I could be standardizing
you could be standardizing
she could be standardizing
we could be standardizing
you could be standardizing
they could be standardizing

Perfect

I could have standardized
you could have standardized
she 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
she 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
she 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
she 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
she 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
she 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 she standardize?
could we standardize?
could you standardize?
could they standardize?

V-ing form

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

Perfect

could I have standardized?
could you have standardized?
could she 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 she 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 she 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 she 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 she 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 she 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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