Bull
Bell
Belt
Bolt
Boot
Soot
Shot
Shop
Ship
Whip

Change "eyes" to "mask".

Eyes
Eyed
Dyed
Deed
Dead
Deal
Dell
Well
Welt
West
Pest
Past
Mast
Mask

Change "Cove" to "Nook"

Cove
Cone
Cons
Coos
Cook
Nook

Change "lord" to "peer".

Lord
Ford
Food
Foot
Boot
Boat
Boar
Boat
Beat
Beet
Beer
Peer

Change "Chat" to "Void"

Chat
That
Teat
Heat
Hear
Heir
Hair
Vair (a type of fur obtained from red squirrels)
Voir (yes it is an English word too - in the expression "voir dire", which in Law is a preliminary examination of a witness or the jury pool by a judge or counsel. You learn something new every day )
Void

Change "pink" to "blue".

Pink
Pick
Peck
Peek
Seek
Seem
Seam
Slam
Glam
Glum
Glue
Blue

Change last to week

Last
Lest
Best
Beat
Beak
Weak
Week

Change "mule" to "pony".

Mule
Mole
Pole
Poly
Pony

Change "bird" to "beak".

Bird
Bind
Bend
Bead
Beak

Change "rile" to "calm".

Rile
Tile
Tale
Pale
Palm
Calm

Change "trim" to "bush"

Trim
Brim
Brit
Brat
Beat
Best
Bust
Bush

Change "news" to "swan".

News
Pews
Peas
Seas
Seat
Swat
Swan

Change "hurt" to "grim"

Hurt
Hurl
Hull
Hell
Heal
Teal
Team
Tram
Trim
Grim

Change "show" to "wash".

Show
Shot
Soot
Boot
Boat
Coat
Cost
Lost
Last
Lash
Wash

Change "loot" to "zeal"

Loot
Moot
Moat
Meat
Meal
Zeal

Change "scam" to "macs".