Negative counterpart

[Oprica Laura]

I must turn these sentences from affirmative to negative.Please help
She has had some problems lately.
They thought about Susan every day
She must have made another mistake.
They had to give her something.
She must be thinking of you.
She is still very shy of her teacher
Both Susan and Mary are good students

[Nikole]

She hasn't had some problems lately.
They didn't think about Susan every day
She must not have made another mistake.
They didn't have to give her something.
She must not be thinking of you.
She is still not very shy of her teacher
Both Susan and Mary are not good students

Is that what you wanted us to do?

[Oprica Laura]

Hi Nikole!!Please take a look at the first sentence.She has had some problems lately.Don't you think the correct negative sentence would be She hasn't had any problems lately.I'm not very sure but I think that some adverbs are changed when you want to turn the sentences negative.

[Nikole]

Yes,you're quite right! Please, sorry, I haven't paid attention to the pronoun "some"

[Oprica Laura]

It's Ok Anyway thanks for helping me