"Tady spí zřídka."

Translation: He seldom sleeps here.

[Taigaer]

What tells us that the subject is 'he'?

[Jamie08MD]

Context. Since there is none for this sentence and the verb only determines 3rd person, you can use any of "he, she, it and they" for the translation to be correct.

[Robert.1974]

Prosim lze pouzit He seldom is sleeping here

[VladaFu]

Ne, pro opakovane akce se pouziva pritomny cas prosty.

[Soya12341]

"He sleeps here seldomly" . . .this word order was nit accepted. Is it incorrect?

[VladaFu]

seldomly is not good, seldom is an adverb already

[2200Lucia60]

"Zřídka spí tady" is alright too for our owl ?

[VladaFu]

Yes, but be aware that placing the adverb sentence-final is not as natural as in English. Or rather that the word order changes the meaning, if the adverb contains the new information of the sentence, it comes last.

[wasnloshier]

Is it just me or are there no tipps and notes for adverbs and conjugations?

[VladaFu]

No, it is not just you