English verb conjugation COULD SYSTEMATIZE

Regular verb: systematize - systematized - systematized

Affirmation

Simple form

I could systematize
you could systematize
she could systematize
we could systematize
you could systematize
they could systematize

V-ing form

I could be systematizing
you could be systematizing
she could be systematizing
we could be systematizing
you could be systematizing
they could be systematizing

Perfect

I could have systematized
you could have systematized
she could have systematized
we could have systematized
you could have systematized
they could have systematized

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I systematize?
could you systematize?
could she systematize?
could we systematize?
could you systematize?
could they systematize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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