English verb conjugation COULD SANDPAPER

Regular verb: sandpaper - sandpapered - sandpapered

Affirmation

Simple form

I could sandpaper
you could sandpaper
he could sandpaper
we could sandpaper
you could sandpaper
they could sandpaper

V-ing form

I could be sandpapering
you could be sandpapering
he could be sandpapering
we could be sandpapering
you could be sandpapering
they could be sandpapering

Perfect

I could have sandpapered
you could have sandpapered
he could have sandpapered
we could have sandpapered
you could have sandpapered
they could have sandpapered

V-ing perfect

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

Negation

Simple form

I couldn't sandpaper
you couldn't sandpaper
he couldn't sandpaper
we couldn't sandpaper
you couldn't sandpaper
they couldn't sandpaper

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sandpaper?
could you sandpaper?
could he sandpaper?
could we sandpaper?
could you sandpaper?
could they sandpaper?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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