Harp
Harm
Barm
Berm
Beam
Bean
Bran

Change "ides" to "mars".

Ides
Odes
Owes
Owls
Awls
Ails
Aids
Lids
Lads
Lass
Mass
Mars

Change "ping" to "fail".

Ping
Pine
Pile
Pill
Pall
Pail
Fail

Change "ends" to "send".

Ends
Ents
Eats
Bats
Bets
Bees
Sees
Seed
Send

Change "life" to "book".

Life
Line
Bine <-- a twining plant stem, as of the hop.
Bone
Bonk
Book

Change "star" to "lite".

Star
Sear
Seas
Sets
Sits
Site
Lite

Change "just" to "king".

Just
Must
Muss
Miss
Kiss
Kins
King

Change "shut" to "open".

Shut
Shot
Shod
Shed
Sped
Aped
Aced
Acer
Aver
Ever
Even
Oven
Open

Change "long" to "wait".

Long
Lone
Bone
Bole
Boll
Boil
Bail
Bait
Wait

Change "even" to "morn".

Even
Ever
Aver
Acer
Aced
Aped
Sped
Shed
Shod
Shot
Soot
Soon
Moon
Morn

Change "rush" to "flow".

Rush
Rust
Must
Most
Moot
Soot
Slot
Slow
Flow

Change "acts" to "part".

Acts
Aces
Apes
Aped
Sped
Seed
Send
Sand
Land
Lard
Card
Cart
Part

Change "duke" to "earl".

Duke
Dune
Done
Dole
Dale
Tale
Tare
Tars
Ears
Earl

Change "fire" to "oven".

Fire
Fine
Find
Fend
Feed
Seed
Sped
Aped
Aced
Acer
Aver
Over
Oven

Change "back" to "pain".

Back
Balk
Ball
Bail
Pail
Pain

Change "harm" to "arms".