English verb conjugation COULD TITTER

Regular verb: titter - tittered - tittered

Affirmation

Simple form

I could titter
you could titter
he could titter
we could titter
you could titter
they could titter

V-ing form

I could be tittering
you could be tittering
he could be tittering
we could be tittering
you could be tittering
they could be tittering

Perfect

I could have tittered
you could have tittered
he could have tittered
we could have tittered
you could have tittered
they could have tittered

V-ing perfect

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

Negation

Simple form

I couldn't titter
you couldn't titter
he couldn't titter
we couldn't titter
you couldn't titter
they couldn't titter

V-ing form

I couldn't be tittering
you couldn't be tittering
he couldn't be tittering
we couldn't be tittering
you couldn't be tittering
they couldn't be tittering

Perfect

I couldn't have tittered
you couldn't have tittered
he couldn't have tittered
we couldn't have tittered
you couldn't have tittered
they couldn't have tittered

V-ing perfect

I couldn't have been tittering
you couldn't have been tittering
he couldn't have been tittering
we couldn't have been tittering
you couldn't have been tittering
they couldn't have been tittering

Interrogative form

Simple form

could I titter?
could you titter?
could he titter?
could we titter?
could you titter?
could they titter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I titter?
couldn't you titter?
couldn't he titter?
couldn't we titter?
couldn't you titter?
couldn't they titter?

V-ing form

couldn't I be tittering?
couldn't you be tittering?
couldn't he be tittering?
couldn't we be tittering?
couldn't you be tittering?
couldn't they be tittering?

Perfect

couldn't I have tittered?
couldn't you have tittered?
couldn't he have tittered?
couldn't we have tittered?
couldn't you have tittered?
couldn't they have tittered?

V-ing perfect

couldn't I have been tittering?
couldn't you have been tittering?
couldn't he have been tittering?
couldn't we have been tittering?
couldn't you have been tittering?
couldn't they have been tittering?

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