English verb conjugation
COULD ANTIQUE

Regular verb: antique - antiqued - antiqued

Affirmation

Simple form	V-ing form
I could antique you could antique he could antique we could antique you could antique they could antique	I could be antiquing you could be antiquing he could be antiquing we could be antiquing you could be antiquing they could be antiquing
Perfect	V-ing perfect
I could have antiqued you could have antiqued he could have antiqued we could have antiqued you could have antiqued they could have antiqued	I could have been antiquing you could have been antiquing he could have been antiquing we could have been antiquing you could have been antiquing they could have been antiquing

Negation

Simple form	V-ing form
I couldn't antique you couldn't antique he couldn't antique we couldn't antique you couldn't antique they couldn't antique	I couldn't be antiquing you couldn't be antiquing he couldn't be antiquing we couldn't be antiquing you couldn't be antiquing they couldn't be antiquing
Perfect	V-ing perfect
I couldn't have antiqued you couldn't have antiqued he couldn't have antiqued we couldn't have antiqued you couldn't have antiqued they couldn't have antiqued	I couldn't have been antiquing you couldn't have been antiquing he couldn't have been antiquing we couldn't have been antiquing you couldn't have been antiquing they couldn't have been antiquing

Interrogative form

Simple form	V-ing form
could I antique? could you antique? could he antique? could we antique? could you antique? could they antique?	could I be antiquing? could you be antiquing? could he be antiquing? could we be antiquing? could you be antiquing? could they be antiquing?
Perfect	V-ing perfect
could I have antiqued? could you have antiqued? could he have antiqued? could we have antiqued? could you have antiqued? could they have antiqued?	could I have been antiquing? could you have been antiquing? could he have been antiquing? could we have been antiquing? could you have been antiquing? could they have been antiquing?

Interro-negative form

Simple form	V-ing form
couldn't I antique? couldn't you antique? couldn't he antique? couldn't we antique? couldn't you antique? couldn't they antique?	couldn't I be antiquing? couldn't you be antiquing? couldn't he be antiquing? couldn't we be antiquing? couldn't you be antiquing? couldn't they be antiquing?
Perfect	V-ing perfect
couldn't I have antiqued? couldn't you have antiqued? couldn't he have antiqued? couldn't we have antiqued? couldn't you have antiqued? couldn't they have antiqued?	couldn't I have been antiquing? couldn't you have been antiquing? couldn't he have been antiquing? couldn't we have been antiquing? couldn't you have been antiquing? couldn't they have been antiquing?