One easy way to ask questions in Italian is to add a question mark to the end of the sentence in writing. (When speaking, raise the pitch of your voice at the end of the sentence.) For example:
Hai un buon lavoro. (You have a good job.)
Hai un buon lavoro? (Do you have a good job?)
If a subject (noun or pronoun) is expressed in the interrogative, it can:
Stay at the beginning of the sentence, before the verb.
Move to the end of the sentence.
Move to precede the verb (the least frequent option).
So, for instance, you can ask the question "Does Nadia have a bicycle?" in three different ways:
Nadia ha una bicicletta?
Ha una bicicletta Nadia?
Ha Nadia una bicicletta?