Complex sentence: Tube, DLR and London Overground Travelcards can use on buses in all zones and trams if the travelcard includes Zones 3,4,5 or 6.
Split into simpler sentences: Tube, DLR and London Overground Travelcards can use on buses in all zones. Trams may also be used if the travelcard includes Zones 3,4,5 or 6.