The marriage must have persisted for at least 2 years.

These have been shown to persist for at least 11 or 12 years, probably longer.

Benefits persist for at least 14 weeks from the time of administration.

This view persisted for a while but, with time, the image of the king changed.

The condition has persisted for a significant period of time.

These problems usually start 13 days after treatment was started and may possibly persist for a month.

In rare cases they can persist for a day or two.

The issue persisted for a few days and eventually stopped.

Symptoms have persisted for at least 6 to 12 months.

This tradition seems to have persisted for 55 years until the late 1960s.