Depending on the sentence, a pronoun should be placed before or after the verb. In a statement, it will be before, such as in "I can buy a necklace." In a question, it will be after, such as in "Can I buy a necklace?" (which is after the helping verb but before the acting verb)
All you have to do is finish the rest of the sentence. Make sure it makes sense:
My mother is amazing
The wild wolf hunted through it's lands
and so on... <span />