English verb conjugation
COULD CATER

Regular verb: cater - catered - catered

Affirmation

Simple form	V-ing form
I could cater you could cater he could cater we could cater you could cater they could cater	I could be catering you could be catering he could be catering we could be catering you could be catering they could be catering
Perfect	V-ing perfect
I could have catered you could have catered he could have catered we could have catered you could have catered they could have catered	I could have been catering you could have been catering he could have been catering we could have been catering you could have been catering they could have been catering

Negation

Simple form	V-ing form
I couldn't cater you couldn't cater he couldn't cater we couldn't cater you couldn't cater they couldn't cater	I couldn't be catering you couldn't be catering he couldn't be catering we couldn't be catering you couldn't be catering they couldn't be catering
Perfect	V-ing perfect
I couldn't have catered you couldn't have catered he couldn't have catered we couldn't have catered you couldn't have catered they couldn't have catered	I couldn't have been catering you couldn't have been catering he couldn't have been catering we couldn't have been catering you couldn't have been catering they couldn't have been catering

Interrogative form

Simple form	V-ing form
could I cater? could you cater? could he cater? could we cater? could you cater? could they cater?	could I be catering? could you be catering? could he be catering? could we be catering? could you be catering? could they be catering?
Perfect	V-ing perfect
could I have catered? could you have catered? could he have catered? could we have catered? could you have catered? could they have catered?	could I have been catering? could you have been catering? could he have been catering? could we have been catering? could you have been catering? could they have been catering?

Interro-negative form

Simple form	V-ing form
couldn't I cater? couldn't you cater? couldn't he cater? couldn't we cater? couldn't you cater? couldn't they cater?	couldn't I be catering? couldn't you be catering? couldn't he be catering? couldn't we be catering? couldn't you be catering? couldn't they be catering?
Perfect	V-ing perfect
couldn't I have catered? couldn't you have catered? couldn't he have catered? couldn't we have catered? couldn't you have catered? couldn't they have catered?	couldn't I have been catering? couldn't you have been catering? couldn't he have been catering? couldn't we have been catering? couldn't you have been catering? couldn't they have been catering?