to, for ,of???

We go to school by bus every day.
We will pay a visit to our grandmother on Sunday.
It is up to you if you do not want to come with us on Sunday.

This book is for Mary. Please kindly give this to Mary when you see her in the afternoon.

We would like to thank you for your assistance in taking care of our grandmother.
It is very kind of you to take care of my grandmother for us. = for us here means on our behalf.
Tom is losing temper and he is out of control now.
I have paid for this handbag myself. = I have paid for this handbag out of my pocket money.

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