Esimies kertoi odotuksistaan selkeästi.

Esimies is a noun meaning supervisor, manager, or boss.

Even though it literally contains mies (man), in modern Finnish esimies is commonly used for a supervisor of any gender. So it does not automatically mean the boss is male.

You may also see more explicitly gender-neutral alternatives in modern usage, such as esihenkilö, but esimies is still very common.

Kertoi is the past tense (imperfect) of the verb kertoa (to tell, to say, to relate).

So:

• kertoa = to tell
• hän kertoo = he/she tells
• hän kertoi = he/she told

In this sentence, Esimies kertoi... means The supervisor told / explained...

Odotuksistaan contains several pieces of grammar packed into one word.

A useful breakdown is:

• odotus = expectation
• odotukset = expectations
• odotuksista = about/from the expectations
• odotuksistaan = about/from his/her/their own expectations

So the word includes:

• the noun odotus
• a plural meaning
• the elative case ending -sta/-stä in plural form
• a possessive suffix meaning his/her/their

Finnish often puts into one word what English expresses with several separate words.

Because the verb kertoa often takes its topic in the elative case (-sta/-stä), especially when meaning tell about or speak about something.

So:

• kertoa suunnitelmista = to tell about plans
• kertoa ongelmista = to tell about problems
• kertoa odotuksista = to tell about expectations

That is why Finnish uses odotuksista rather than a direct object form here.

The ending -an here is a possessive suffix for the third person.

It means something like:

• his
• her
• their

So:

• odotuksista = about expectations
• odotuksistaan = about his/her/their expectations

In this sentence, it most naturally refers back to the subject, so the sense is about his/her own expectations.

It is plural.

• odotus = expectation
• odotukset = expectations

So odotuksistaan means about his/her/their expectations, not just one expectation.

If it were singular, you would expect something like odotuksestaan = about his/her expectation.

Because Finnish often uses a possessive suffix instead of a separate possessive word.

So instead of saying:

• his expectations
• her expectations

Finnish can express that idea directly at the end of the noun:

• odotuksistaan

A separate pronoun like hänen is often unnecessary when the suffix already shows possession.

Yes, but it changes the style a little.

Compare:

• Esimies kertoi odotuksistaan selkeästi.
  = The supervisor clearly explained his/her own expectations.

• Esimies kertoi hänen odotuksistaan selkeästi.
  = The supervisor clearly explained his/her expectations, but now hänen could refer to someone else, not necessarily the supervisor.

So the suffix-only version is very natural when the expectations belong to the subject of the sentence.

Selkeästi is an adverb, meaning clearly.

The adjective is:

• selkeä = clear

The adverb is:

• selkeästi = clearly

This is similar to English:

• clear → clearly

In the sentence, selkeästi describes how the supervisor told about the expectations.

A very common way is to add -sti to an adjective stem.

For example:

• selkeä → selkeästi = clearly
• nopea → nopeasti = quickly
• varma → varmasti = certainly / surely

So selkeästi is a very regular-looking adverb form.

The basic order here is:

• Esimies = subject
• kertoi = verb
• odotuksistaan = complement/topic of telling
• selkeästi = adverb

So the sentence is structurally quite straightforward.

Finnish word order is flexible, though, so you could also say:

• Esimies kertoi selkeästi odotuksistaan.

That still sounds natural. The difference is mainly one of emphasis and rhythm, not core meaning.

Yes. Finnish allows fairly flexible adverb placement.

For example:

• Esimies kertoi odotuksistaan selkeästi.
• Esimies kertoi selkeästi odotuksistaan.

Both are natural. The first version places selkeästi at the end, which can give a neat concluding emphasis to clearly. The second places more immediate emphasis on the manner of speaking.

Not always. Kertoa can be used in more than one pattern.

For example:

• Kerro minulle tarina.
  = Tell me a story.
  Here tarina is more like an object.

• Kerro minulle suunnitelmistasi.
  = Tell me about your plans.
  Here suunnitelmistasi is in the elative case.

So with kertoa, Finnish can either focus on what is being told as an object, or on what topic someone is talking about, often using -sta/-stä.

It says the supervisor communicated clearly.

That is because selkeästi is an adverb modifying the verb kertoi. So it describes the manner of telling.

If you wanted to say that the expectations themselves were clear, Finnish would usually phrase it differently, for example with selkeät odotukset or another structure that directly modifies the noun.

Finnish has no articles like a or the.

So esimies can mean:

• a supervisor
• the supervisor

The exact interpretation comes from context. In this sentence, English would often translate it as The supervisor..., but Finnish does not need a separate word for that.

Esimies is in the nominative case, which is the basic dictionary form.

Here it is the subject of the sentence:

• Esimies = the supervisor
• kertoi = told

So this is a simple subject + verb beginning.

Then the sentence becomes less specific about whose expectations they are.

• odotuksista = about expectations
• odotuksistaan = about his/her/their own expectations

So without the suffix, the sentence could mean the supervisor was talking about expectations in general, or about expectations that belong to someone else, depending on context.

The suffix makes the connection to the supervisor much clearer.