I could mediate you could mediate she could mediate we could mediate you could mediate they could mediate
V-ing form
I could be mediating you could be mediating she could be mediating we could be mediating you could be mediating they could be mediating
Perfect
I could have mediated you could have mediated she could have mediated we could have mediated you could have mediated they could have mediated
V-ing perfect
I could have been mediating you could have been mediating she could have been mediating we could have been mediating you could have been mediating they could have been mediating
Negation
Simple form
I could not mediate you could not mediate she could not mediate we could not mediate you could not mediate they could not mediate
V-ing form
I could not be mediating you could not be mediating she could not be mediating we could not be mediating you could not be mediating they could not be mediating
Perfect
I could not have mediated you could not have mediated she could not have mediated we could not have mediated you could not have mediated they could not have mediated
V-ing perfect
I could not have been mediating you could not have been mediating she could not have been mediating we could not have been mediating you could not have been mediating they could not have been mediating
Interrogative form
Simple form
could I mediate? could you mediate? could she mediate? could we mediate? could you mediate? could they mediate?
V-ing form
could I be mediating? could you be mediating? could she be mediating? could we be mediating? could you be mediating? could they be mediating?
Perfect
could I have mediated? could you have mediated? could she have mediated? could we have mediated? could you have mediated? could they have mediated?
V-ing perfect
could I have been mediating? could you have been mediating? could she have been mediating? could we have been mediating? could you have been mediating? could they have been mediating?
Interro-negative form
Simple form
could I not mediate? could you not mediate? could she not mediate? could we not mediate? could you not mediate? could they not mediate?
V-ing form
could I not be mediating? could you not be mediating? could she not be mediating? could we not be mediating? could you not be mediating? could they not be mediating?
Perfect
could I not have mediated? could you not have mediated? could she not have mediated? could we not have mediated? could you not have mediated? could they not have mediated?
V-ing perfect
could I not have been mediating? could you not have been mediating? could she not have been mediating? could we not have been mediating? could you not have been mediating? could they not have been mediating?