Qenya
sisse
pronoun. here
sisse alli neri
there are no men here
sie
pronoun. here
sis
adverb. here
sinis(se)
adverb. here
si
pronoun. this
sinome
adverb. here
símane
adverb. here
símen
adverb. here
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.