Hi! Could any English Trs. help me correct these sentences?

I saw a movie last night, it's called "Trade", and I heard a sentence from an actor say " She was pregnant in/with that man's baby. I'm not sure which preposition in/ with is the correct one.

Another sentence is, he doesn't like to talk about bad things behind someone's back. I know he was saying about " gossip", but I'm not sure if I heard it right as well.

Please revise this sentence for me if there is any mistake.

The other sentences are, " Is there any money on the desk/ Is there money on the desk?"

" There is some money on the desk/ There is much money on the desk."

" There is some medicine in that can/ There is much medicine in that can"

Please help me! Thank you very much!
Hi nikoer30127,

"She was pregnant in/with that man's baby. I'm not sure which preposition in/ with"

" Is there any money on the desk/ Is there money on the desk?" Both are O.K

" There is some money on the desk/ There is much money on the desk." We usually use "much" for uncountables in negative and question

" There is some medicine in that can/ There is much medicine in that can" We usually use "much" for uncountables in negative and question

Regards

Iman
Thanks, but what about the second sentence? Does it sound weird to you?
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The sentence, "He doesn't like to talk about bad things behind someone's back.", although grammatically correct, sounds unusual. The sentence would typically be said as, "He doesn't like to talk about things behind someone's back." Here it is already implied that the things talked about are "bad" (or he wouldn't be talking behind someone's back). So to put in the word "bad" is extraneous.
Sorry,

I've just forgotten the second sentence.

You can use the word "backbiting" instead which means: "unpleasant or cruel talk about someone who is not present"

"He doesn't like backbiting"

Regards

Iman
Emotion: big smile
Thank you very much!That is very helpful!!!
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Thanks for your help!!!"backbiting"---->new voc! thanks