Hi, I'm a new member on the forum. My name's Michal and I'm from Poland.
I've been learning descriptive grammar of Enlgish lately. Reading
LONGMAN Grammar of Spoken and Written English, I've come across a couple of problems which are hard for me to overcome. I hope that you will help me with that

A lot of my doubts arose after reading a short passage about Prepositional Objects in the book mentioned above. I'll quote it so you know better what I'm refering to.
"(...) Prepositional objects and indirect objects are alike in that they require a mediating element (a preposition or a direct object). The correspondence is particularly close with indirect objects and corresponding prepositional construction:
Indirect object
He [gave] Carrie a ring. Prepositional object
Mr Evans [gave] it [to] me.
To stress the correspondence, it may be convenient the use the term
oblique object (...)"
And here are my questions:
1) Does Prepositional Object always follow a Prepositional Verb or does it appear in other contexts? And what follows a Phrasal Verb?
2) What's the difference between Prepositional Object and Complement of a Preposition and which one is called 'Oblique Object'?
3) I always thought that Indirect Object stays an object in passive but the passage above shows that it becomes Prepositional Object in this case... Or maybe I just get it wrong???
Please, answer to these questions if you can because these things are haunting me all the time.
Thank you,
Michal