So est is 3rd person singular but es is 2nd person singular? My spanish brain will struggle with that...
Yeah, those pesky differences in language evolution. :-P It's interesting to compare and contrast with the other major Romance languages.
|ego sum||yo soy||je suis||io sono||eu sunt/sînt|
|tū es||tú eres||tu es||tu sei||tu eşti|
|is est||él es||il est||lui è||el este/e|
|nōs sumus||nosotros somos||nous sommes||noi siamo||noi suntem|
|vōs éstis||vosotros sois||vous êtes||voi siete||voi sunteţi|
|iī sunt||ellos son||ils sont||loro sono||ei sunt/sînt|
I'm sure that knowing all of the Latin conjugations, not just the present indicative, could help shed a light on where the differences came from.
indicative declarative, the verb normally comes last. Where does the verb normally go in the interrogative?
Indicative and interrogative are not words in the same category. Indicative means "the facts" and its opposite would be "subjunctive" which is used for concepts dealing with "wishes, potentials, etc."
I believe you mean declarative vs interrogative. In the declarative, many classical authors would indeed put the verb at the end, but it could go most places.
In interrogative sentences, you often find the verb first (in a "yes/no" question, like "habitasne in silva?") or either second or last in questions with "question words" like this example.
Oof, brain fart. Yes, that is what I meant. I am quite familiar with all the terms, I just derped. :-P Thank you.