Add -ed
Empty + ed
Emptied
Silly + est
Silliest
Play + ing
Playing
Cry + er
Crier
Lazy + ly
Lazily
Cry + ed
Cried
Funny + est
Copy + ing
Copying
Try + er
Trier
Plenty + ful
Plentiful
Decay + ed
Decayed
Funky + est
Funkiest
Baby + ing
Babying
Slay + er
Slayer
Tidy + ness
Tidiness
Play + ed
Played
Windy + est
Windiest
Play + ing
Playing
Busy+ er
Busier
Play + ful
Playful
Stay + ed
Stayed
Sunny + est
Sunniest
Fray + ing
Fraying
Sticky + er
Stickier
Baby + ish
Babyish