Longman Dictionary of Contemporary English
might-have-beens
noun
EXAMPLES FROM CORPUS
▪ Byways of history, particularly might-have-beens, also suit the form well.
▪ It takes some imagination to share the contradictions, the unrealised hopes, the might-have-beens, of the past.
▪ Looking at the might-have-beens of stylistic variation is a way of making the elusive quality of good writing open to inspection.
▪ This book is not concerned, however, with might-have-beens but with the facts as they were, so far as can be told.
▪ We like to think about the might-have-beens.