You say, “I bought it of my own accord”.

1. You say that you have been bought if of your own accord.
2. You say that you had bought it of your own accord.
3. You say that I bring it of my own accord.
4. You say that you bought it off your own accord.
5. None

The 2nd Person Pronoun (i.e. you, yours) of the reported speech is changed according to “object” of the reporting verb