English verb conjugation COULD SINTER

Regular verb: sinter - sintered - sintered

Affirmation

Simple form

I could sinter
you could sinter
she could sinter
we could sinter
you could sinter
they could sinter

V-ing form

I could be sintering
you could be sintering
she could be sintering
we could be sintering
you could be sintering
they could be sintering

Perfect

I could have sintered
you could have sintered
she could have sintered
we could have sintered
you could have sintered
they could have sintered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sinter?
could you sinter?
could she sinter?
could we sinter?
could you sinter?
could they sinter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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