Sentence examples for these may be from inspiring English sources

These may be very difficult.

These may be keeping us healthy.

These may be dwindling especially for FARC.

These may be famous last words.

These may be hard to find.

These may be worth buying now.

These may be short-term maneuvers.

In after times these may be told".

These may be wealth, ethnicity, lifestyle, neighbourhoods, even households.

(Note: some of these may be made up).

These may be generalisations, but perhaps there's some truth there.