<span style="color:rgb(0,0,0);background-color:rgb(221,221,221);">The letter pattern ‘ough’ is one of the trickiest spellings in English. It can be used to spell several different sounds.</span><br style="color:rgb(0,0,0);"/><br style="color:rgb(0,0,0);"/><a href='https://www.yorkmead.co.uk/files/documents/spellings/stage5/13._Letter_string_ough.pdf' target='_blank' rel='nofollow'>https://www.yorkmead.co.uk/files/documents/spellings/stage5/13._Letter_string_ough.pdf</a><br style="color:rgb(0,0,0);"/><br style="color:rgb(0,0,0);"/><span style="color:rgb(0,0,0);background-color:rgb(221,221,221);">Please explain the use of the modal "can" in "it can be used" as it has multiple meanings and uses.</span>