Questions & Answers about Menjač radi dobro.
Menjač is a noun. In everyday Serbian, it most often means gearbox or transmission, and sometimes it can also refer to a gear shifter/gear lever, depending on context.
In Menjač radi dobro, it is most naturally understood as the subject of the sentence: the gearbox/transmission is functioning well.
Grammatically, menjač is:
- masculine
- singular
- in the nominative case here, because it is the subject
Radi is the 3rd person singular present tense of raditi.
The verb raditi can mean:
- to work
- to function
- to operate
So in this sentence, radi means something like works / is working / functions.
A few present-tense forms of raditi are:
- ja radim = I work
- ti radiš = you work
- on/ona/ono radi = he/she/it works
Since menjač is singular, Serbian uses radi.