English verb conjugation
COULD LIASE

Regular verb: liase - liased - liased

Affirmation

Simple form	V-ing form
I could liase you could liase he could liase we could liase you could liase they could liase	I could be liasing you could be liasing he could be liasing we could be liasing you could be liasing they could be liasing
Perfect	V-ing perfect
I could have liased you could have liased he could have liased we could have liased you could have liased they could have liased	I could have been liasing you could have been liasing he could have been liasing we could have been liasing you could have been liasing they could have been liasing

Negation

Simple form	V-ing form
I could not liase you could not liase he could not liase we could not liase you could not liase they could not liase	I could not be liasing you could not be liasing he could not be liasing we could not be liasing you could not be liasing they could not be liasing
Perfect	V-ing perfect
I could not have liased you could not have liased he could not have liased we could not have liased you could not have liased they could not have liased	I could not have been liasing you could not have been liasing he could not have been liasing we could not have been liasing you could not have been liasing they could not have been liasing

Interrogative form

Simple form	V-ing form
could I liase? could you liase? could he liase? could we liase? could you liase? could they liase?	could I be liasing? could you be liasing? could he be liasing? could we be liasing? could you be liasing? could they be liasing?
Perfect	V-ing perfect
could I have liased? could you have liased? could he have liased? could we have liased? could you have liased? could they have liased?	could I have been liasing? could you have been liasing? could he have been liasing? could we have been liasing? could you have been liasing? could they have been liasing?

Interro-negative form

Simple form	V-ing form
could I not liase? could you not liase? could he not liase? could we not liase? could you not liase? could they not liase?	could I not be liasing? could you not be liasing? could he not be liasing? could we not be liasing? could you not be liasing? could they not be liasing?
Perfect	V-ing perfect
could I not have liased? could you not have liased? could he not have liased? could we not have liased? could you not have liased? could they not have liased?	could I not have been liasing? could you not have been liasing? could he not have been liasing? could we not have been liasing? could you not have been liasing? could they not have been liasing?