Use "portends" in a sentence

1. A Breakdown is a downward move in a security's price, usually through an identified level of support, that portends further declines

2. He who knows how to find out what each of them means or portends deserves the title of a clever adept and of a master in this art .

3. Bats in Belfries and Other Places ; Folklore about bats in buildings most often portends doom— a reflection, perhaps, on the way many cultures have viewed bats through the centuries