When I went to London, I took a ferry down the River Thames.
After the bridge was built, fewer people crossed the river on the ferry.
Commuter buses ferry the fans from parking lots to the stadium.
The Space Shuttle was used to ferry teams of astronauts to the International Space Station.
The ferry will be here in a few minutes to take us across the river.
Ferry is not typically capitalized unless it is the first word in a sentence or part of a proper noun like the name of a specific ferry service or company.
I am not writing a sentence using that word.
I can give you a sentence using the word galaxy.
This is a sentence using the word aviator.
a sentence using the word endotracheal
This is a sentence using the word monomer. :P
I am saying a sentence using the word collagen.
this is a sentence using the word armchair.
Need a sentence using the word crater?
Please type a sentence using the word assertion.
This is an example of a sentence using the word breakfast.