be lucky

Often used to express that something is unlikely or rare, implying good fortune if it happens.

When to use 'be lucky'

Use 'be lucky' when something is unlikely but would be fortunate if it happened. It often implies a sense of surprise or relief if the event occurs.

Structure with 'if'

The phrase is often used in conditional sentences with 'if' to express that something is unlikely but would be fortunate if it occurred: 'You'd be lucky if...'