What/you/never/do/ before last summer
What had you never done before last summer?
who/cook/ you dinner/before/you/come/home/ last night
Who had cooked you dinner before you came home last night?
you/arrive/ at the train station/ when/ the train/ already/ depart
Did you arrive at the train station when the train had already departed?
you/live/ somewhere else/ before/ you live/ where you are/ now
Had you lived somewhere else before you lived where you are now?
What/you/learn/before/you/ start/go/to school
What had you learnt before you started going to school?
What/ book/ you/ read/ before/ you watch/ the movie
What book had you read before you watched the movie?
you/learn/how/ to swim/ before/ the first time/ you/ go/ to the beach
Had you learned how to swim before the first time you went to the beach?
you/already/ watch/ the movie/ before/ you/ accidentally/ spoil/ the ending/ for everyone
Had you already watched the movie before you accidentally spoiled the ending for everyone?
Where/you/travel/to/before/the school year/ start
Where had you traveled to before the school year started?