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

English verb conjugation COULD LACK

Regular verb: lack - lacked - lacked


Affirmation

Simple form
I could lack
you could lack
she could lack
we could lack
you could lack
they could lack
V-ing form
I could be lacking
you could be lacking
she could be lacking
we could be lacking
you could be lacking
they could be lacking
Perfect
I could have lacked
you could have lacked
she could have lacked
we could have lacked
you could have lacked
they could have lacked
V-ing perfect
I could have been lacking
you could have been lacking
she could have been lacking
we could have been lacking
you could have been lacking
they could have been lacking

Negation

Simple form
I could not lack
you could not lack
she could not lack
we could not lack
you could not lack
they could not lack
V-ing form
I could not be lacking
you could not be lacking
she could not be lacking
we could not be lacking
you could not be lacking
they could not be lacking
Perfect
I could not have lacked
you could not have lacked
she could not have lacked
we could not have lacked
you could not have lacked
they could not have lacked
V-ing perfect
I could not have been lacking
you could not have been lacking
she could not have been lacking
we could not have been lacking
you could not have been lacking
they could not have been lacking

Interrogative form

Simple form
could I lack?
could you lack?
could she lack?
could we lack?
could you lack?
could they lack?
V-ing form
could I be lacking?
could you be lacking?
could she be lacking?
could we be lacking?
could you be lacking?
could they be lacking?
Perfect
could I have lacked?
could you have lacked?
could she have lacked?
could we have lacked?
could you have lacked?
could they have lacked?
V-ing perfect
could I have been lacking?
could you have been lacking?
could she have been lacking?
could we have been lacking?
could you have been lacking?
could they have been lacking?

Interro-negative form

Simple form
could I not lack?
could you not lack?
could she not lack?
could we not lack?
could you not lack?
could they not lack?
V-ing form
could I not be lacking?
could you not be lacking?
could she not be lacking?
could we not be lacking?
could you not be lacking?
could they not be lacking?
Perfect
could I not have lacked?
could you not have lacked?
could she not have lacked?
could we not have lacked?
could you not have lacked?
could they not have lacked?
V-ing perfect
could I not have been lacking?
could you not have been lacking?
could she not have been lacking?
could we not have been lacking?
could you not have been lacking?
could they not have been lacking?