Some verbs ending in -nge
Where the g has a soft sound (like "j" in jam), some verbs do not drop the final e.
Examples
singe: Harry is singeing his eyebrows with the candle!
binge:After fasting all day, she spent the evening bingeing on chocolate.
(Note, however, hinge - hinging, cring - cringing, lunge - lunging, fringe - fringing. Consult a dictionary when you come across any new -nge verbs for the spelling of the continuous form.)