hope you don't mind

[Offroad]

Please, dear teachers, could you proofread these sentences?

I hope you don't mind of reading this paper in English.
I hope you don't mind to get there a little bit earlier.
I hope you don't mind starting the examination after 4 o'clock!
I hope you don't mind I buy a new drink!
Would you mind of bringing my laptop back by today's 5 o'clock?

Hope you don't mind of proofreading all of those sentences.

Thanks in advance!

[bhaisahab]

Please, dear teachers, could you proofread these sentences?

I hope you don't mind of reading this paper in English.
I hope you don't mind to get there a little bit earlier.
I hope you don't mind starting the examination after 4 o'clock!
I hope you don't mind I buy a new drink!
Would you mind of bringing my laptop back by today's 5 o'clock?

Hope you don't mind of proofreading all of those sentences.

Thanks in advance!

I hope you don't mind reading this paper in English. No 'of' needed.
I hope you don't mind getting there a little bit earlier. Present participle is better than infinitive in this sentence.
I hope you don't mind starting the examination after 4 o'clock! Fine.
I hope you don't mind if I buy another drink! This is better.
Would you mind me bringing my laptop back by 5 o'clock today? This is better.

[Offroad]

Ok, thank you!

But as for "today's X", let me get it straight:

Can't say "today's five o'clock" ?

Many thanks?

[bhaisahab]

No, you could say 'today at 5 o'clock', but it would not work in this sentence.