English verb conjugation COULD WALLPAPER

Regular verb: wallpaper - wallpapered - wallpapered

Affirmation

Simple form

I could wallpaper
you could wallpaper
he could wallpaper
we could wallpaper
you could wallpaper
they could wallpaper

V-ing form

I could be wallpapering
you could be wallpapering
he could be wallpapering
we could be wallpapering
you could be wallpapering
they could be wallpapering

Perfect

I could have wallpapered
you could have wallpapered
he could have wallpapered
we could have wallpapered
you could have wallpapered
they could have wallpapered

V-ing perfect

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

Negation

Simple form

I could not wallpaper
you could not wallpaper
he could not wallpaper
we could not wallpaper
you could not wallpaper
they could not wallpaper

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I wallpaper?
could you wallpaper?
could he wallpaper?
could we wallpaper?
could you wallpaper?
could they wallpaper?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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