Sentence examples for are often difficult from inspiring English sources

His allies are often difficult.

Their work conditions are often difficult.

They are often difficult people to help.

Face-to-face exhibitions are often difficult.

But they are often difficult to find.

Such systems are often difficult to solve.

DWMS are often difficult to fabricate, however.

These bugs are often difficult to find manually.

Fleet Street memoirs are often difficult to read without wincing.

They are often difficult to treat and recurrence is common.

But those bans are often difficult or impossible to enforce.