彼の言葉は信じるに足る。
- His words are worthy of trust.

彼の言葉は信じるに足る。 meaning: His words are trustworthy.

⚫︎ The sentence follows a typical Japanese sentence structure: Subject - Topic - (Optional) Object - Verb. ⚫︎ 彼の言葉 (his words) functions as the subject. The possessive particle の (no) connects 彼 (he/him) and 言葉 (words), indicating possession. ⚫︎ The topic marker は (wa) follows 彼の言葉. It indicates what the sentence is about. The topic is the subject in this sentence.

⚫︎ に足る (ni taru) is a fixed expression indicating "to be worthy of," "to be deserving of," or "to be worth (doing something)". It expresses value or merit. ⚫︎ It is often used with a verb in its dictionary form (plain form) or the noun form of a verb. ⚫︎ In this sentence, 信じる (shinjiru - to believe) is in its plain/dictionary form, indicating that his words are worthy of being believed. ⚫︎ Variations include: * 見るに足る - to be worth seeing * 尊敬するに足る - to be worthy of respect

⚫︎ The verb 信じる (shinjiru - to believe) is in its dictionary form. ⚫︎ The dictionary form is the base form of the verb, used for various grammatical purposes. * It is used in the plain/dictionary form of a verb. * It is used with the expression に足る to form the meaning of worth.

⚫︎ は (wa): * Functions as the topic marker, introducing the subject of the sentence. * Indicates what the sentence is about. ⚫︎ に (ni): * Used in the expression に足る. * This is the grammatical particle used with the fixed expression.

⚫︎ While the sentence doesn't directly use an adjectival noun, understanding the concept is important at N1 level. ⚫︎ Adjectival nouns describe nouns. They take the particle な (na) before the noun they modify. ⚫︎ The expression に足る functions similarly to an adjective in this sentence. The meaning of the sentence can be rephrased: * 彼の言葉は信用できる - His words are believable. * The plain form of the verb できる (dekiru - can do) is used here. * 信用できる is an adjective phrase.