Rangers IMO do not have cleric spells. Though, they are allowed access to kinds of druid spells like summon animals etc. This does depend to a certain extent on kits (if any) that you choose. I think the beastmaster kit gives you more druidical abilities while the stalker kit gives you a few mage spells at lvl 12, I think. A good idea is to dual to a cleric from Ranger at lvl 9. Then you get access to druid and cleric spells-think about casting holy might and iron skins while dual wielding flails/maces.
Paladins are given certan cleric spells-though again dependent on kit. The inquisitor kit, for instance, is the most limited clerically for paladins-though thats made up for by the awesome dispel magic at twice the level.

Paladin gets Cleric spells, Ranger Druid spells. They are limited in spells, though, only getting them at later levels and so can on get to 4th(i think) lvl spells before the exp. cap. Avengers(druids) and Stalkers(rangers) both get some wizard spells as part of their spell selection.