English verb conjugation
COULD LIGATURE

Regular verb: ligature - ligatured - ligatured

Affirmation

Simple form	V-ing form
I could ligature you could ligature he could ligature we could ligature you could ligature they could ligature	I could be ligaturing you could be ligaturing he could be ligaturing we could be ligaturing you could be ligaturing they could be ligaturing
Perfect	V-ing perfect
I could have ligatured you could have ligatured he could have ligatured we could have ligatured you could have ligatured they could have ligatured	I could have been ligaturing you could have been ligaturing he could have been ligaturing we could have been ligaturing you could have been ligaturing they could have been ligaturing

Negation

Simple form	V-ing form
I could not ligature you could not ligature he could not ligature we could not ligature you could not ligature they could not ligature	I could not be ligaturing you could not be ligaturing he could not be ligaturing we could not be ligaturing you could not be ligaturing they could not be ligaturing
Perfect	V-ing perfect
I could not have ligatured you could not have ligatured he could not have ligatured we could not have ligatured you could not have ligatured they could not have ligatured	I could not have been ligaturing you could not have been ligaturing he could not have been ligaturing we could not have been ligaturing you could not have been ligaturing they could not have been ligaturing

Interrogative form

Simple form	V-ing form
could I ligature? could you ligature? could he ligature? could we ligature? could you ligature? could they ligature?	could I be ligaturing? could you be ligaturing? could he be ligaturing? could we be ligaturing? could you be ligaturing? could they be ligaturing?
Perfect	V-ing perfect
could I have ligatured? could you have ligatured? could he have ligatured? could we have ligatured? could you have ligatured? could they have ligatured?	could I have been ligaturing? could you have been ligaturing? could he have been ligaturing? could we have been ligaturing? could you have been ligaturing? could they have been ligaturing?

Interro-negative form

Simple form	V-ing form
could I not ligature? could you not ligature? could he not ligature? could we not ligature? could you not ligature? could they not ligature?	could I not be ligaturing? could you not be ligaturing? could he not be ligaturing? could we not be ligaturing? could you not be ligaturing? could they not be ligaturing?
Perfect	V-ing perfect
could I not have ligatured? could you not have ligatured? could he not have ligatured? could we not have ligatured? could you not have ligatured? could they not have ligatured?	could I not have been ligaturing? could you not have been ligaturing? could he not have been ligaturing? could we not have been ligaturing? could you not have been ligaturing? could they not have been ligaturing?