English verb conjugation COULD YO-YO

Regular verb: yo-yo - yo-yoed - yo-yoed

Affirmation

Simple form

I could yo-yo
you could yo-yo
he could yo-yo
we could yo-yo
you could yo-yo
they could yo-yo

V-ing form

I could be yo-yoing
you could be yo-yoing
he could be yo-yoing
we could be yo-yoing
you could be yo-yoing
they could be yo-yoing

Perfect

I could have yo-yoed
you could have yo-yoed
he could have yo-yoed
we could have yo-yoed
you could have yo-yoed
they could have yo-yoed

V-ing perfect

I could have been yo-yoing
you could have been yo-yoing
he could have been yo-yoing
we could have been yo-yoing
you could have been yo-yoing
they could have been yo-yoing

Negation

Simple form

I couldn't yo-yo
you couldn't yo-yo
he couldn't yo-yo
we couldn't yo-yo
you couldn't yo-yo
they couldn't yo-yo

V-ing form

I couldn't be yo-yoing
you couldn't be yo-yoing
he couldn't be yo-yoing
we couldn't be yo-yoing
you couldn't be yo-yoing
they couldn't be yo-yoing

Perfect

I couldn't have yo-yoed
you couldn't have yo-yoed
he couldn't have yo-yoed
we couldn't have yo-yoed
you couldn't have yo-yoed
they couldn't have yo-yoed

V-ing perfect

I couldn't have been yo-yoing
you couldn't have been yo-yoing
he couldn't have been yo-yoing
we couldn't have been yo-yoing
you couldn't have been yo-yoing
they couldn't have been yo-yoing

Interrogative form

Simple form

could I yo-yo?
could you yo-yo?
could he yo-yo?
could we yo-yo?
could you yo-yo?
could they yo-yo?

V-ing form

could I be yo-yoing?
could you be yo-yoing?
could he be yo-yoing?
could we be yo-yoing?
could you be yo-yoing?
could they be yo-yoing?

Perfect

could I have yo-yoed?
could you have yo-yoed?
could he have yo-yoed?
could we have yo-yoed?
could you have yo-yoed?
could they have yo-yoed?

V-ing perfect

could I have been yo-yoing?
could you have been yo-yoing?
could he have been yo-yoing?
could we have been yo-yoing?
could you have been yo-yoing?
could they have been yo-yoing?

Interro-negative form

Simple form

couldn't I yo-yo?
couldn't you yo-yo?
couldn't he yo-yo?
couldn't we yo-yo?
couldn't you yo-yo?
couldn't they yo-yo?

V-ing form

couldn't I be yo-yoing?
couldn't you be yo-yoing?
couldn't he be yo-yoing?
couldn't we be yo-yoing?
couldn't you be yo-yoing?
couldn't they be yo-yoing?

Perfect

couldn't I have yo-yoed?
couldn't you have yo-yoed?
couldn't he have yo-yoed?
couldn't we have yo-yoed?
couldn't you have yo-yoed?
couldn't they have yo-yoed?

V-ing perfect

couldn't I have been yo-yoing?
couldn't you have been yo-yoing?
couldn't he have been yo-yoing?
couldn't we have been yo-yoing?
couldn't you have been yo-yoing?
couldn't they have been yo-yoing?

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