English verb conjugation COULD SYSTEMIZE

Regular verb: systemize - systemized - systemized

Affirmation

Simple form

I could systemize
you could systemize
she could systemize
we could systemize
you could systemize
they could systemize

V-ing form

I could be systemizing
you could be systemizing
she could be systemizing
we could be systemizing
you could be systemizing
they could be systemizing

Perfect

I could have systemized
you could have systemized
she could have systemized
we could have systemized
you could have systemized
they could have systemized

V-ing perfect

I could have been systemizing
you could have been systemizing
she could have been systemizing
we could have been systemizing
you could have been systemizing
they could have been systemizing

Negation

Simple form

I couldn't systemize
you couldn't systemize
she couldn't systemize
we couldn't systemize
you couldn't systemize
they couldn't systemize

V-ing form

I couldn't be systemizing
you couldn't be systemizing
she couldn't be systemizing
we couldn't be systemizing
you couldn't be systemizing
they couldn't be systemizing

Perfect

I couldn't have systemized
you couldn't have systemized
she couldn't have systemized
we couldn't have systemized
you couldn't have systemized
they couldn't have systemized

V-ing perfect

I couldn't have been systemizing
you couldn't have been systemizing
she couldn't have been systemizing
we couldn't have been systemizing
you couldn't have been systemizing
they couldn't have been systemizing

Interrogative form

Simple form

could I systemize?
could you systemize?
could she systemize?
could we systemize?
could you systemize?
could they systemize?

V-ing form

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

Perfect

could I have systemized?
could you have systemized?
could she have systemized?
could we have systemized?
could you have systemized?
could they have systemized?

V-ing perfect

could I have been systemizing?
could you have been systemizing?
could she have been systemizing?
could we have been systemizing?
could you have been systemizing?
could they have been systemizing?

Interro-negative form

Simple form

couldn't I systemize?
couldn't you systemize?
couldn't she systemize?
couldn't we systemize?
couldn't you systemize?
couldn't they systemize?

V-ing form

couldn't I be systemizing?
couldn't you be systemizing?
couldn't she be systemizing?
couldn't we be systemizing?
couldn't you be systemizing?
couldn't they be systemizing?

Perfect

couldn't I have systemized?
couldn't you have systemized?
couldn't she have systemized?
couldn't we have systemized?
couldn't you have systemized?
couldn't they have systemized?

V-ing perfect

couldn't I have been systemizing?
couldn't you have been systemizing?
couldn't she have been systemizing?
couldn't we have been systemizing?
couldn't you have been systemizing?
couldn't they have been systemizing?

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