Learn Finnish: Esimies arvioi työtä ja antaa palautetta. - The supervisor evaluates the work and gives feedback.

The verb arvioida (to evaluate) takes the partitive case here because the action is seen as an ongoing or open-ended process. The supervisor is evaluating the work in general, rather than finishing a single, complete task.

Why is 'palaute' (feedback) written as 'palautetta'?

Palaute is an abstract, uncountable noun. When you give an indefinite amount of something uncountable (like 'some feedback'), it must be in the partitive case, just like when you say you drink 'some coffee' (kahvia).

How does the verb 'arvioida' become 'arvioi' for the supervisor ('hän')?

Arvioida is a group 2 verb. To find the stem, you remove the -da, leaving arvioi-. Normally, the third-person form lengthens the last vowel, but since arvioi already ends in two different vowels, Finnish doesn't add a third one. It simply stays arvioi.

Does the word 'esimies' only refer to a male boss?

Historically yes, because it ends in -mies (man). However, it has long been used as a standard title for a supervisor of any gender. It is good to know that nowadays, the modern, gender-neutral word esihenkilö is becoming much more common in Finnish workplaces.