Courses are made up of individual sessions, typically on a fixed weekly schedule.

There is no fixed schedule, as the aluguers wait until enough passengers have come before leaving.

For me, revelation arrives, on no fixed schedule, in nature, love and art.

They have no fixed schedule or commitments and are not expected to produce any specified amount of work.

As an air taxi it does not operates a fixed schedule.

This is a useful concept among people who often work at night and/or according to no fixed schedule.

There's no fixed schedule; ferries leave between 7am and 4pm when full (12 people).

A fixed schedule is drawn up with which every train crew must be familiar.

At the time of research there were about two weekly services, but there's no fixed schedule and taxis leave only when they have enough customers.

The service has a fixed schedule and stops at designated places in Ogden three times a day.