English verb conjugation
COULD LIGATURE

Regular verb: ligature - ligatured - ligatured

Affirmation

Simple form	V-ing form
I could ligature you could ligature she could ligature we could ligature you could ligature they could ligature	I could be ligaturing you could be ligaturing she 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 she 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 she 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 couldn't ligature you couldn't ligature she couldn't ligature we couldn't ligature you couldn't ligature they couldn't ligature	I couldn't be ligaturing you couldn't be ligaturing she couldn't be ligaturing we couldn't be ligaturing you couldn't be ligaturing they couldn't be ligaturing
Perfect	V-ing perfect
I couldn't have ligatured you couldn't have ligatured she couldn't have ligatured we couldn't have ligatured you couldn't have ligatured they couldn't have ligatured	I couldn't have been ligaturing you couldn't have been ligaturing she couldn't have been ligaturing we couldn't have been ligaturing you couldn't have been ligaturing they couldn't have been ligaturing

Interrogative form

Simple form	V-ing form
could I ligature? could you ligature? could she ligature? could we ligature? could you ligature? could they ligature?	could I be ligaturing? could you be ligaturing? could she 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 she 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 she 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
couldn't I ligature? couldn't you ligature? couldn't she ligature? couldn't we ligature? couldn't you ligature? couldn't they ligature?	couldn't I be ligaturing? couldn't you be ligaturing? couldn't she be ligaturing? couldn't we be ligaturing? couldn't you be ligaturing? couldn't they be ligaturing?
Perfect	V-ing perfect
couldn't I have ligatured? couldn't you have ligatured? couldn't she have ligatured? couldn't we have ligatured? couldn't you have ligatured? couldn't they have ligatured?	couldn't I have been ligaturing? couldn't you have been ligaturing? couldn't she have been ligaturing? couldn't we have been ligaturing? couldn't you have been ligaturing? couldn't they have been ligaturing?