tarkkailkaa
Tarkkailkaa is the second person plural present imperative form of the Finnish verb tarkkailla, which means to monitor, observe, or keep watch. It is used when giving a directive to a group of people to perform the action of monitoring or paying attention to something. The form is built from the verb tarkkailla with the plural imperative ending -kaa, a standard pattern in Finnish for commands directed at more than one person.
The root tarkkailla itself comes from tarkka- meaning careful or precise, with the sense of looking after
Examples of usage include: Tarkkailkaa ympäristöä varmistaaksenne, ettei poikkeavuuksia ilmene. and Tarkkailkaa tilannetta seuraamalla eteneviä merkkejä,
Notes: Finnish imperative forms vary by number and person; tarkkailla also has the singular imperative tarkkaile.