Y+ ing= ying
Play= Playing
Fly=Flying

E= E +ing
Dance= Dancing
Fake= Faking

EE+ing= eeing
See= Seeing
Flee= Fleeing

ie= ie + ying
Die= Dying
Lie= Lying

C/V/C (consonant/ vowel consonant)
Double last consonant +ing
Run= running
Put= Putting