adaro

[adaro]

And also, is there a general rule as to how one could identify a complement? Which verbs actually take a complement?

I appreciate your feedback.
Regards,

[Tdol]

There are different types of complement: http://www.usingenglish.com/glossary/complement.html
However, in all cases, if you take them away, the verb will not be complete and it won't make much sense.