When does one use the ablative and locative cases in latin? any examples of a sentence?

IM a bit confused on when one uses the ablative and locatve cases. I know you use locative for where to things, and also with prepositions, but i think I need more of an example.When does one use the ablative and locative cases in latin? any examples of a sentence?
Good news! The use of the locative is very limited. There's no separate locative case (as far as I know, anyway); rather, it borrows the accusative, dative, and ablative.





It's used:





1. for towns, cities, small islands


2. with the words ';domus,'; ';rus'; (country, as opposed to city), and ';humus'; (ground, earth)





eo, ire, ivi, itum = to go (pres. act. ind.: eo, is, it, etc.)





Domi visus est. = He was seen at home. (dative)


Domum ibit. = He will go [to] home. (accusative)


Domo ivit. = He went from home. (ablative)





Notice that at no time has a preposition left my keyboard.





Romae est. = She/He is at Rome. (no ';in';)


Ibit Romam. = She will go to Rome (no ';ad';)


Ivit Roma. = He left from Rome. (no ';ab'; or ';ex';)





So, the locative eliminates the need for prepositions, and uses the:





dative for ';place where'; or ';place at';


accusative for ';place to which'; or ';to where';


ablative for ';place from which'; or ';from where';





Bona fortuna!When does one use the ablative and locative cases in latin? any examples of a sentence?
The locative is relatively simple. It is only used with a few nouns. In a sentence it might be:





';Cerberus domi manet'; - Cerberus stays at home





Most of the time, the ablative is used for ';at'; or ';in';.





The ablative is tricky and has quite a few uses. There is the ';pure'; ablative, or ablative of separation. This usually has the idea of ';from';, e.g. ';patria'; in:





';Populus Atheniensis Phocionem patria pepulit'; - The Athenians drove Phocion from his country





or ';montibus'; in:





';ruunt de montibus amnes'; - the rivers rush down from the mountains





The pure ablative can be used for comparisons as well, e.g. ';virtute'; in:





';Nihil est amabilius virtute'; - nothing is more worthy of love than virtue





The ablative of association usually has the idea of ';with';, you use it with ';cvm'; when cvm means with, so:





';Clemens cvm Quinto ambulat'; - Clemens walks with Quintus





(sorry about using v rather than u, but yahoo apparently censors that word because of its meaning in English)





You can also use it in a sentence like:





';Villa abundat gallina, lacte, caseo, melle'; - the farm abounds with poultry, milk, cheese and honey.





The one that usually comes first in Latin courses is the or ablative of agent, which sometimes comes with ';ab'; or ';a'; and meany ';by'; e.g. ';Caecilio'; in the sentence:





';Grumio a Caecilio salutatur'; - Grumio is greeted by Caecilius.





When talking about time, the ablative can be used for at/on, so ';eo ipso die'; in:





';Ego Capuam veni eo ipso die'; - I came to Capua on that very day





It can also be used to mean ';within';, as in ';hora'; in:





';in hora sciemus'; - we shall know within an hour.





Finally, there is the ablative absolute, with is used for a phrase which is not connected grammatically with the rest of the sentence, usually it means ';when/because (ablative absolute phrase) was the case, this happened'; e.g. ';regibus exactis'; in:





';regibus exactis consules creati sunt'; - with the kings abolished, consuls were elected.