Sit
Sat-Sat
Shoot
Shot-Shot
Speak
Spoke-Spoken
Understand
Understood-Understood
Stick
Stuck-Stuck
Swim
Swam-Swum
Stand
Stood- Stood
Think
Thought-Thought
Win
Won-Won
Sing
Sang-Sung
Take
Took-Taken
Spend
Spent-Spent
Tell
Told-Told
Write
Wrote-Written
Sleep
Slept-Slept
Wear
Wore-Worn
Spell
Spelt/Spelled- Spelt/spelled