How do you say I'll love you forever in latin?
Semper te amabo.
(Used "semper" here, meaning always, in place of "in perpetuum," meaning forever, to make it sound a little better. The meaning is the same.)
The Latin language is variously referred to in Latin: as Latinum, lingua Latina ("Latin tongue"), or just Latina (short for the preceding). To say "I love Latin" you would use the accusative (direct object) form of one of these plus the verb amo "I love": Amo Latinum Amo [linguam] Latinam You could also say Ego amare Latine
To say the words 'love always' in the Spanish language you say el amor siempre. To say these words in Latin you say amor semper. If you wish to use "love always" as an ending salutation in a letter, (i.e. to replace "sincerely" or "love" at the end of a letter), you would say "siempre con amor". "El amor siempre" is simply means that the love is forever, but it would sound odd to end…