215. The emphatic form of the verb, expressed in English by "do", "did",
as in "I do study", "I did find it", "Do tell me", and by adverbs such
as "certainly", "indeed", etc., is expressed in Esperanto by placing the
adverb "ja", indeed, before the verb:
Vi ja mirigas min! You do astonish me!
Li ja estas justa jugxisto, he is indeed an upright judge.
Li ja havis tiun rajton, he did have that right.