Look up this word
In a sentence
Neprospeje sťažovať sa.
It won't do any good to complain.
Nikdy predtým som nepočul Toma sa sťažovať.
I've never heard Tom complain before.
Nemôžeš sa sťažovať.
You can't complain.
Nemôžete sa sťažovať.
You can't complain.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Example sentences from Tatoeba (CC BY 2.0 FR).
Full attribution on References.