Learn Finnish: Mies astelee puistossa ja hyräilee. - The man strolls in the park and hums.

Astelee comes from the verb astella (to stroll, to pace). It is derived from the base verb astua (to step). By adding the frequentative suffix -ella, a single, completed action ("to step") becomes a continuous, repeated, or relaxed action ("to take many steps" or "to stroll").

Is hyräilee also a frequentative verb?

Yes! It comes from the verb hyräillä (to hum). The -illä suffix acts just like -ella/-ellä to show ongoing or repeated action. It is built on an onomatopoeic root (imitating the humming sound "hyr-"), making the verb mean "to hum continuously or casually."

Why do the dictionary forms astella and hyräillä lose an 'l' when conjugated as astelee and hyräilee?

Verbs ending in -ella/-ellä or -illa/-illä belong to verb type 3. To find the stem of a type 3 verb, you remove the final -la/-lä. This leaves the stems astel- and hyräil-. Then, you add the personal ending, which for the third-person singular is a doubled vowel (-ee).

Since he is moving, why does the sentence use puistossa (in the park) instead of the directional puistoon (into the park)?