English verb conjugation COULD OBSOLESCE

Regular verb: obsolesce - obsolesced - obsolesced

Affirmation

Simple form

I could obsolesce
you could obsolesce
she could obsolesce
we could obsolesce
you could obsolesce
they could obsolesce

V-ing form

I could be obsolescing
you could be obsolescing
she could be obsolescing
we could be obsolescing
you could be obsolescing
they could be obsolescing

Perfect

I could have obsolesced
you could have obsolesced
she could have obsolesced
we could have obsolesced
you could have obsolesced
they could have obsolesced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I obsolesce?
could you obsolesce?
could she obsolesce?
could we obsolesce?
could you obsolesce?
could they obsolesce?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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