A complete English translation of the Catechism of the UGCC is available here on royaldoors.net, an excellent site on its own and now with even more great stuff...

The Catechism Christ our Pascha – audiobook (in Ukrainian) - https://youtu.be/4YcvOKOLdXM 

The Catechism Christ our Pascha (in Ukrainian) -http://catechismugcc.org

The Catechism Christ our Pascha (in English) - http://catechism.royaldoors.net/