Question

shall i compare thee to a summers day .(change the voice)

Answer 1

The given sentence will be converted into passive voice in the following manner:

Shall thou be compared to a summer's day by me?

It is an interrogative sentence; so its passive will also be in interrogative.

Thee is the object case of pronoun 'you'.

Thou is the subject case of pronoun 'you'.

Answer 2

Answer:

Wil thou be compared to a summer's day by me ?