たった百円しかない。
- I have only 100 yen.

たった百円しかない。 meaning: I only have 100 yen. / I have only 100 yen.

Explanation of the first grammar point ⚫︎ たった (tatta) functions as an adverb and means "only," "just," or "merely." It emphasizes the smallness or insignificance of the amount or quantity. ⚫︎ It usually precedes the item it is modifying. Example: ⚫︎ たった五分だけです。 (Tatta gofun dake desu.) - It's only five minutes.

Explanation of the second grammar point ⚫︎ しかない (shika nai) is a fixed expression indicating "only" or "nothing but." ⚫︎ It is used to express that something is the only option or possibility. ⚫︎ しか (shika) is a particle that always follows a word that is the *only* thing. The verb at the end of the sentence must be in the negative form. ⚫︎ ない (nai) is the negative form of the verb ある (aru) meaning "to exist" or "to have." It's used here to indicate that there is nothing more. Example: ⚫︎ 水しか飲まない。 (Mizu shika nomanai.) - I only drink water. / I drink nothing but water.

Explanation of the third grammar point ⚫︎ 百円 (hyaku en) means "100 yen". ⚫︎ It's a noun phrase composed of a number (百 – hyaku: hundred) and a counter (円 – en: yen). ⚫︎ In Japanese, counters are crucial when expressing amounts. ⚫︎ 円 (en) is the Japanese currency unit.

Explanation of the fourth grammar point ⚫︎ The sentence follows a simple structure: Subject (implied) + たった + Amount + しかない. ⚫︎ In this case, the subject "I" or "I"m" is understood from the context. ⚫︎ Japanese often omits the subject if it's clear from the situation or previous sentences. ⚫︎ The basic word order in this simple sentence is quite flexible. However, the order shown here is the most natural way to express the meaning.

Explanation of the fifth grammar point ⚫︎ In this sentence, the particle that is most important to understand is しかない ⚫︎ The に particle is not explicitly used here because the sentence focuses on the limitation of the money itself rather than its location. ⚫︎ The は particle could be implied and the sentence would sound similar but could change the meaning of this sentence. ⚫︎ は indicates the topic. The original sentence focuses on *how much* money, not what is the *topic* of the sentence. ⚫︎ The other particle in this sentence is の which is part of the meaning of 百円, the currency unit.