Questions & Answers about Tehtävä on yksinkertainen.
Tehtävä is a noun meaning roughly “task / exercise / assignment / job to be done.”
It is directly related to the verb tehdä (“to do, to make”).
Grammatically, tehtävä is originally a participle form meaning “(something) that must / is to be done”, and from that it has become a common noun meaning a task or exercise.
In this sentence, Tehtävä is a noun in the nominative singular, used as the subject: “The task …”
Finnish has no articles like English “a/an” or “the.”
Whether you understand tehtävä as “a task” or “the task” comes from context, not from any separate word.
So Tehtävä on yksinkertainen can be translated as:
- “The task is simple.”
- “A task is simple.” (in a more generic statement)
but the Finnish sentence itself does not mark that distinction.