Time

• Prepositions introduce some expressions of time:
  
  post
  multos annos = "
  after
  many years"
• Words/Phrases in Acc./Abl. case without prepositions introduce other ideas of time:
  a) Accusative of duration of time:
  multos annos = "for many years"
  b) Ablative of time when and Ablative of time within which:
  aestate = "in summer"
  eo tempore = "at that time"
• Adverbs introduce some expressions of time:
  a) cras = "tomorrow"; hodie = "today"; etc.
  b) abhinc tres dies = "three days ago"
  c) post, after(ward) + ablative
  ante, previously, before + ablative
  tribus post diebus = "three days later"
  tribus ante diebus = "three days before"

Places

When you are moving towards an object, use Accusative
When you are moving away from an object, use Ablative

ad + accusative = to/towards
in + accusative = into*
in + ablative = in/on*
a, ab + ablative = away from
e, ex + ablative = out from
de + ablative = down from
*denotes Locative case

Locative case: (when there is no motion involved) With names of cities, towns, and small islands, use the locative case without a proposition to indicated a place in which
-with singular nouns of the 1st/2nd declension, use genitive endings
-with singular nouns of the 3rd declension, use ablative (sometives dative) endings
-with plural nouns, use ablative endings

Rus, ruri is a 3rd declension neuter noun; its locative is ruri

Use this chart for endings to the irregular verb domus ("home"):

	Singular	Singular	Plural
Nom.	us		us
Gen.	us	i (locative)	uum	orum
Dat.	ui	o	ibus
Acc.	um		us	os
Abl.	u	o	ibus