To start with elvish languages, you actually start with High Elven. The High Elves describe their tongue as the "High Tongue" or the "Blessed Tongue" or the "True Tongue." Despite being descended from Pelagastic Elvish and Fair Elven, the tongue has a musical nature to it.
To be fair, and to be different, the High Elvish language has open vowels and soft consonants with few hard sounds -- according to Sean K. Reynolds construction of the language. Tolkien's languages had a definite impact on D&D Elvish, which is used for High Elvish. The open vowels come from Fair Elvish, while soft consonants come from Pelagastic. The result was a tongue that married the best parts of two tongues from Arvandor.
The grammar follows the order of Subject Verb Object, though the Subject may be omitted if it is understood or part of a command.
Elvish has a number of phrases and words, the phrases below are just a sample.
A star shall shine on the
hour of our meeting
|Elen sila lumenn omentilmo|
Don't look for trouble,
it will come to you
|Uuma ma' ten' rashwe, ta tuluva a' lle|
|I shall treasure your gift in my heart||Amin harmuva onalle e' cormamin|
|Love of my life||Mela en' coiamin|
|You are king in your imagination||Lle naa haran e' nausalle|