I can mediate you can mediate he can mediate we can mediate you can mediate they can mediate
V-ing form
I can be mediating you can be mediating he can be mediating we can be mediating you can be mediating they can be mediating
Perfect
I can have mediated you can have mediated he can have mediated we can have mediated you can have mediated they can have mediated
V-ing perfect
I can have been mediating you can have been mediating he can have been mediating we can have been mediating you can have been mediating they can have been mediating
Negation
Simple form
I can't mediate you can't mediate he can't mediate we can't mediate you can't mediate they can't mediate
V-ing form
I can't be mediating you can't be mediating he can't be mediating we can't be mediating you can't be mediating they can't be mediating
Perfect
I can't have mediated you can't have mediated he can't have mediated we can't have mediated you can't have mediated they can't have mediated
V-ing perfect
I can't have been mediating you can't have been mediating he can't have been mediating we can't have been mediating you can't have been mediating they can't have been mediating
Interrogative form
Simple form
can I mediate? can you mediate? can he mediate? can we mediate? can you mediate? can they mediate?
V-ing form
can I be mediating? can you be mediating? can he be mediating? can we be mediating? can you be mediating? can they be mediating?
Perfect
can I have mediated? can you have mediated? can he have mediated? can we have mediated? can you have mediated? can they have mediated?
V-ing perfect
can I have been mediating? can you have been mediating? can he have been mediating? can we have been mediating? can you have been mediating? can they have been mediating?
Interro-negative form
Simple form
can't I mediate? can't you mediate? can't he mediate? can't we mediate? can't you mediate? can't they mediate?
V-ing form
can't I be mediating? can't you be mediating? can't he be mediating? can't we be mediating? can't you be mediating? can't they be mediating?
Perfect
can't I have mediated? can't you have mediated? can't he have mediated? can't we have mediated? can't you have mediated? can't they have mediated?
V-ing perfect
can't I have been mediating? can't you have been mediating? can't he have been mediating? can't we have been mediating? can't you have been mediating? can't they have been mediating?