Question

Up to his thirtieth year he remained unmarried.
Change the simple sentence into complex sentence

Answer 1

Answer

while he is already in his thirtieth year, he remained unmarried.

Explanation:

There are different types of complex sentence that I have learned. You can either put one at the start or in the middle.

I hope this is correct and it helped.

Answer 2

Answer:

Until he was thirty, he remained unmarried.