English verb conjugation
COULD HYPHENATE

Regular verb: hyphenate - hyphenated - hyphenated

Affirmation

Simple form	V-ing form
I could hyphenate you could hyphenate he could hyphenate we could hyphenate you could hyphenate they could hyphenate	I could be hyphenating you could be hyphenating he could be hyphenating we could be hyphenating you could be hyphenating they could be hyphenating
Perfect	V-ing perfect
I could have hyphenated you could have hyphenated he could have hyphenated we could have hyphenated you could have hyphenated they could have hyphenated	I could have been hyphenating you could have been hyphenating he could have been hyphenating we could have been hyphenating you could have been hyphenating they could have been hyphenating

Negation

Simple form	V-ing form
I could not hyphenate you could not hyphenate he could not hyphenate we could not hyphenate you could not hyphenate they could not hyphenate	I could not be hyphenating you could not be hyphenating he could not be hyphenating we could not be hyphenating you could not be hyphenating they could not be hyphenating
Perfect	V-ing perfect
I could not have hyphenated you could not have hyphenated he could not have hyphenated we could not have hyphenated you could not have hyphenated they could not have hyphenated	I could not have been hyphenating you could not have been hyphenating he could not have been hyphenating we could not have been hyphenating you could not have been hyphenating they could not have been hyphenating

Interrogative form

Simple form	V-ing form
could I hyphenate? could you hyphenate? could he hyphenate? could we hyphenate? could you hyphenate? could they hyphenate?	could I be hyphenating? could you be hyphenating? could he be hyphenating? could we be hyphenating? could you be hyphenating? could they be hyphenating?
Perfect	V-ing perfect
could I have hyphenated? could you have hyphenated? could he have hyphenated? could we have hyphenated? could you have hyphenated? could they have hyphenated?	could I have been hyphenating? could you have been hyphenating? could he have been hyphenating? could we have been hyphenating? could you have been hyphenating? could they have been hyphenating?

Interro-negative form

Simple form	V-ing form
could I not hyphenate? could you not hyphenate? could he not hyphenate? could we not hyphenate? could you not hyphenate? could they not hyphenate?	could I not be hyphenating? could you not be hyphenating? could he not be hyphenating? could we not be hyphenating? could you not be hyphenating? could they not be hyphenating?
Perfect	V-ing perfect
could I not have hyphenated? could you not have hyphenated? could he not have hyphenated? could we not have hyphenated? could you not have hyphenated? could they not have hyphenated?	could I not have been hyphenating? could you not have been hyphenating? could he not have been hyphenating? could we not have been hyphenating? could you not have been hyphenating? could they not have been hyphenating?