English verb conjugation
COULD WINDOW-DRESS

Regular verb: window-dress - window-dressed - window-dressed

Affirmation

Simple form	V-ing form
I could window-dress you could window-dress he could window-dress we could window-dress you could window-dress they could window-dress	I could be window-dressing you could be window-dressing he could be window-dressing we could be window-dressing you could be window-dressing they could be window-dressing
Perfect	V-ing perfect
I could have window-dressed you could have window-dressed he could have window-dressed we could have window-dressed you could have window-dressed they could have window-dressed	I could have been window-dressing you could have been window-dressing he could have been window-dressing we could have been window-dressing you could have been window-dressing they could have been window-dressing

Negation

Simple form	V-ing form
I couldn't window-dress you couldn't window-dress he couldn't window-dress we couldn't window-dress you couldn't window-dress they couldn't window-dress	I couldn't be window-dressing you couldn't be window-dressing he couldn't be window-dressing we couldn't be window-dressing you couldn't be window-dressing they couldn't be window-dressing
Perfect	V-ing perfect
I couldn't have window-dressed you couldn't have window-dressed he couldn't have window-dressed we couldn't have window-dressed you couldn't have window-dressed they couldn't have window-dressed	I couldn't have been window-dressing you couldn't have been window-dressing he couldn't have been window-dressing we couldn't have been window-dressing you couldn't have been window-dressing they couldn't have been window-dressing

Interrogative form

Simple form	V-ing form
could I window-dress? could you window-dress? could he window-dress? could we window-dress? could you window-dress? could they window-dress?	could I be window-dressing? could you be window-dressing? could he be window-dressing? could we be window-dressing? could you be window-dressing? could they be window-dressing?
Perfect	V-ing perfect
could I have window-dressed? could you have window-dressed? could he have window-dressed? could we have window-dressed? could you have window-dressed? could they have window-dressed?	could I have been window-dressing? could you have been window-dressing? could he have been window-dressing? could we have been window-dressing? could you have been window-dressing? could they have been window-dressing?

Interro-negative form

Simple form	V-ing form
couldn't I window-dress? couldn't you window-dress? couldn't he window-dress? couldn't we window-dress? couldn't you window-dress? couldn't they window-dress?	couldn't I be window-dressing? couldn't you be window-dressing? couldn't he be window-dressing? couldn't we be window-dressing? couldn't you be window-dressing? couldn't they be window-dressing?
Perfect	V-ing perfect
couldn't I have window-dressed? couldn't you have window-dressed? couldn't he have window-dressed? couldn't we have window-dressed? couldn't you have window-dressed? couldn't they have window-dressed?	couldn't I have been window-dressing? couldn't you have been window-dressing? couldn't he have been window-dressing? couldn't we have been window-dressing? couldn't you have been window-dressing? couldn't they have been window-dressing?