English verb conjugation
COULD TOPE

Regular verb: tope - toped - toped

Affirmation

Simple form	V-ing form
I could tope you could tope he could tope we could tope you could tope they could tope	I could be toping you could be toping he could be toping we could be toping you could be toping they could be toping
Perfect	V-ing perfect
I could have toped you could have toped he could have toped we could have toped you could have toped they could have toped	I could have been toping you could have been toping he could have been toping we could have been toping you could have been toping they could have been toping

Negation

Simple form	V-ing form
I couldn't tope you couldn't tope he couldn't tope we couldn't tope you couldn't tope they couldn't tope	I couldn't be toping you couldn't be toping he couldn't be toping we couldn't be toping you couldn't be toping they couldn't be toping
Perfect	V-ing perfect
I couldn't have toped you couldn't have toped he couldn't have toped we couldn't have toped you couldn't have toped they couldn't have toped	I couldn't have been toping you couldn't have been toping he couldn't have been toping we couldn't have been toping you couldn't have been toping they couldn't have been toping

Interrogative form

Simple form	V-ing form
could I tope? could you tope? could he tope? could we tope? could you tope? could they tope?	could I be toping? could you be toping? could he be toping? could we be toping? could you be toping? could they be toping?
Perfect	V-ing perfect
could I have toped? could you have toped? could he have toped? could we have toped? could you have toped? could they have toped?	could I have been toping? could you have been toping? could he have been toping? could we have been toping? could you have been toping? could they have been toping?

Interro-negative form

Simple form	V-ing form
couldn't I tope? couldn't you tope? couldn't he tope? couldn't we tope? couldn't you tope? couldn't they tope?	couldn't I be toping? couldn't you be toping? couldn't he be toping? couldn't we be toping? couldn't you be toping? couldn't they be toping?
Perfect	V-ing perfect
couldn't I have toped? couldn't you have toped? couldn't he have toped? couldn't we have toped? couldn't you have toped? couldn't they have toped?	couldn't I have been toping? couldn't you have been toping? couldn't he have been toping? couldn't we have been toping? couldn't you have been toping? couldn't they have been toping?