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 couldn't wallpaper
you couldn't wallpaper
he couldn't wallpaper
we couldn't wallpaper
you couldn't wallpaper
they couldn't wallpaper

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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