checking sentences

[Far-Man]

Hi

I just want to check these two sentences if they are correct or not ?
the first one :
There have been several instances of violence at some schools, probably some of them refer to some dangerous sports such as boxing .
the second one :
Intitial researches said that the tea may be useful in treating some diseases ,but they have not yet been confirmed .

Thanks in advance

 

[emsr2d2]

Hi

I just want to check if these two sentences [STRIKE]if they[/STRIKE] are correct or not.

The first one:

There have been several instances of violence at some schools. Some of them are probably related to violent [STRIKE]probably some of them refer to some dangerous[/STRIKE] sports such as boxing.

The second one:

Intitial research[STRIKE]es[/STRIKE] [STRIKE]said[/STRIKE] says that [STRIKE]the[/STRIKE] tea may be useful in treating some diseases, but [STRIKE]they[/STRIKE] these claims have not yet been [STRIKE]confirmed[/STRIKE] proved.

Thanks in advance

See above. Please take care with your punctuation. You do not put a space before a full stop, only after one. The same rule applies to commas and colons.