'Haben' oder 'Sein', which to use?

Grammar

English has transitive and intransitive verbs. Depending on which category a verb falls into, it either has 'has' or 'was' in perfect tense such as "I was gone" or "I have eaten". Similarly, in German a verb can have 'haben' or 'sein' associated with each verb in past tense. Since "verb in second position" rule overrides all rules, the 'haben' or 'sein' part lands in the second position. The main verb changes form and goes to the end of the sentence like so: Ich bin zurück gekommen. Note that 'trennbar' verbs such as anrufen become angeruft.

Sein	Haben
Pertaining to bewegung (movement), eg. kommen, wandern, reisen, schwimmen, fliegen, gehen, segeln, fahren	Verbs that usually have an object
Änderung (to change state), eg. aufwachen, wachsen, werden	...and all other verbs.
Bleiben, passieren

Vocabulary

anrufen: to call

kommen: to come

wandern: to go hiking

reisen/fahren: to travel

schwimmen: to swim

fliegen: to fly

gehen: to go

segeln: to sail

aufwachen: to wake up

wachsen: to grow

werden: to become

bleiben: to stay

passieren: to happen

sich verabschieden: to say good bye

plötzlich: suddenly