I was wondering if you could let me know in each one of the following sets, which sentence sounds idiomatic and then natural. If a sentence doesn't work, how I should write it. (From my point of view, all of the sentences in each group mean exactly the same.)
A)
I didn't mean to take liberty.
I didn't mean to take liberties.
I didn't mean to venture.
B)
I took the liberty of using your umbrella when you were absent. I hope you don’t mind.
I took the liberties of using your umbrella when you were absent. I hope you don’t mind.
I ventured and used your umbrella when you were absent. I hope you don’t mind.