Sentence examples for an are is from inspiring English sources

An are is - yes, you read that right - an are is the unit of metric land measure, 100 square metres, abbreviated to "a" - though of course that's not how any solver is going to initially read "are" in a clue.

An ARE is commonly present in the 3′-untranslated region of many proto-oncogenes, growth factors and cytokine mRNAs (Chen and Shyu, 1995; Jacobson and Peltz, 1996).

A: That's been tough.

A: That's being worked out now.

A. It is, isn't it?

A Memorial is being planned.

A suspect is being sought.

A prototype is being tested.

(A sequel is being discussed).

A university is being built.

A subway is being dug.