[@EruditeAssassin], at the start of your turn, unless otherwise noted, you have the following actions always available:
[List]
[*] An attack action, which is regularly only one attack unless you have Extra Attack or a special ability that permits you more attacks as part of an attack action. Casting a spell takes up this action, as appropriate to its description. Actions in combat, such as the shove action, takes up one of your attacks, if you have multiple; if you have one, it uses that. You have one attack action per turn unless noted otherwise.
[*] A bonus action, which is used for two-weapon fighting, some spells or other special class ability. You have one per turn unless noted otherwise.
[*] A reaction, which you may use to make an opportunity attack against a foe who leaves your threatened area or some spells or abilities as in their description. You have one per turn unless noted otherwise.
[*] And movement, up to your speed, which can be mixed at any ratio to your other actions. 
[*] Free actions, and no actions, are up to the Dungeon Master and often are combinations of events such as speaking or some hybrid skill checks.
[/list]

If memory serves, this should be correct.