English verb conjugation COULD LEISTER

Regular verb: leister - leistered - leistered

Affirmation

Simple form

I could leister
you could leister
he could leister
we could leister
you could leister
they could leister

V-ing form

I could be leistering
you could be leistering
he could be leistering
we could be leistering
you could be leistering
they could be leistering

Perfect

I could have leistered
you could have leistered
he could have leistered
we could have leistered
you could have leistered
they could have leistered

V-ing perfect

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

Negation

Simple form

I could not leister
you could not leister
he could not leister
we could not leister
you could not leister
they could not leister

V-ing form

I could not be leistering
you could not be leistering
he could not be leistering
we could not be leistering
you could not be leistering
they could not be leistering

Perfect

I could not have leistered
you could not have leistered
he could not have leistered
we could not have leistered
you could not have leistered
they could not have leistered

V-ing perfect

I could not have been leistering
you could not have been leistering
he could not have been leistering
we could not have been leistering
you could not have been leistering
they could not have been leistering

Interrogative form

Simple form

could I leister?
could you leister?
could he leister?
could we leister?
could you leister?
could they leister?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not leister?
could you not leister?
could he not leister?
could we not leister?
could you not leister?
could they not leister?

V-ing form

could I not be leistering?
could you not be leistering?
could he not be leistering?
could we not be leistering?
could you not be leistering?
could they not be leistering?

Perfect

could I not have leistered?
could you not have leistered?
could he not have leistered?
could we not have leistered?
could you not have leistered?
could they not have leistered?

V-ing perfect

could I not have been leistering?
could you not have been leistering?
could he not have been leistering?
could we not have been leistering?
could you not have been leistering?
could they not have been leistering?

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