[受「う」]け[身「み」] => Passive, be V-ed. N4
Causative, Passive, Volitional
に[難「むずか」]くない => It's not hard to A N1
Adjectival, Descriptions
[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional