If they're getting "I'll of dogs" then they're getting the word divisions right, but the problem there is "I'll" and "isle" sound identical so no amount of enun

If they're getting "I'll of dogs" then they're getting the word divisions right, but the problem there is "I'll" and "isle" sound identical so no amount of enunciating will distinguish them. The only thing to suggest at this point is to spell out the word.