Both forms add a Ya, so the easiest way to distinguish them is its position.
Added YaExampleBab
Between 1st and 2nd root lettersخَيْعَلَ5
Between 2nd and 3rd root lettersشَرْيَفَ6
Opening interactive controls...
The One Difference to Watch
Attached Trilateral (Mujarrad) - Bab 5: Fay'alah & Bab 6: Fay'alah
Both forms add a Ya, so the easiest way to distinguish them is its position.
Added YaExampleBab
Between 1st and 2nd root lettersخَيْعَلَ5
Between 2nd and 3rd root lettersشَرْيَفَ6