Questions & Answers about Poplatek je vysoký.
Je is the 3rd person singular present tense of být (to be).
So:
- já jsem = I am
- ty jsi = you are
- on/ona/ono je = he/she/it is
In Poplatek je vysoký, je means is.
Because vysoký is an adjective, and in Czech adjectives must agree with the noun they describe.
Poplatek is:
- singular
- masculine
- inanimate
- nominative
So the adjective also takes the nominative singular masculine inanimate form: vysoký.
Compare:
- poplatek je vysoký = the fee is high
- cena je vysoká = the price is high
(cena is feminine, so the adjective changes to vysoká) - nájemné je vysoké = the rent is high
(nájemné is neuter, so the adjective changes to vysoké)
Yes. Poplatek is a masculine inanimate noun.
A useful clue is that many Czech nouns ending in a consonant are masculine. Here it is specifically masculine inanimate, not animate.
That matters because adjectives and some other words must match it:
- vysoký poplatek
- ten poplatek = that fee