English verb conjugation
COULD EXCLUDE

Regular verb: exclude - excluded - excluded

Affirmation

Simple form	V-ing form
I could exclude you could exclude he could exclude we could exclude you could exclude they could exclude	I could be excluding you could be excluding he could be excluding we could be excluding you could be excluding they could be excluding
Perfect	V-ing perfect
I could have excluded you could have excluded he could have excluded we could have excluded you could have excluded they could have excluded	I could have been excluding you could have been excluding he could have been excluding we could have been excluding you could have been excluding they could have been excluding

Negation

Simple form	V-ing form
I couldn't exclude you couldn't exclude he couldn't exclude we couldn't exclude you couldn't exclude they couldn't exclude	I couldn't be excluding you couldn't be excluding he couldn't be excluding we couldn't be excluding you couldn't be excluding they couldn't be excluding
Perfect	V-ing perfect
I couldn't have excluded you couldn't have excluded he couldn't have excluded we couldn't have excluded you couldn't have excluded they couldn't have excluded	I couldn't have been excluding you couldn't have been excluding he couldn't have been excluding we couldn't have been excluding you couldn't have been excluding they couldn't have been excluding

Interrogative form

Simple form	V-ing form
could I exclude? could you exclude? could he exclude? could we exclude? could you exclude? could they exclude?	could I be excluding? could you be excluding? could he be excluding? could we be excluding? could you be excluding? could they be excluding?
Perfect	V-ing perfect
could I have excluded? could you have excluded? could he have excluded? could we have excluded? could you have excluded? could they have excluded?	could I have been excluding? could you have been excluding? could he have been excluding? could we have been excluding? could you have been excluding? could they have been excluding?

Interro-negative form

Simple form	V-ing form
couldn't I exclude? couldn't you exclude? couldn't he exclude? couldn't we exclude? couldn't you exclude? couldn't they exclude?	couldn't I be excluding? couldn't you be excluding? couldn't he be excluding? couldn't we be excluding? couldn't you be excluding? couldn't they be excluding?
Perfect	V-ing perfect
couldn't I have excluded? couldn't you have excluded? couldn't he have excluded? couldn't we have excluded? couldn't you have excluded? couldn't they have excluded?	couldn't I have been excluding? couldn't you have been excluding? couldn't he have been excluding? couldn't we have been excluding? couldn't you have been excluding? couldn't they have been excluding?