burst burst bursting

cost cost costing

hit hit hitting

hurt hurt hurting

let let letting

set set setting

shut shut shutting

fed fed feeding

laid laid laying

sold sold selling

sent sent sending

sat sat sitting

drew drawn drawing

drove driven driving

fell fallen falling

flew flown flying

froze frozen freezing

grew grown growing

lay lain lying

rode ridden riding

rose risen rising

stole stolen stealing

tore torn tearing

threw thrown throwing

wore worn wearing