先生にほめられました。
- I was praised by the teacher.

先生にほめられました。 meaning: I was praised by the teacher.

The main grammar point in this sentence is the passive voice. ⚫︎ The passive voice in Japanese is used to describe when the subject of the sentence receives the action. ⚫︎ It's formed by changing a verb's conjugation. ⚫︎ In this case, ほめる（to praise） has been changed to its passive form, ほめられる（to be praised）. ⚫︎ The particle に marks the agent, or the person/thing performing the action. ⚫︎ The basic structure for the passive voice is: Subject + は/が + Agent + に + Verb (passive form). ⚫︎ For instance: ⚫︎ 私は先生にほめられました。（I was praised by the teacher.） ⚫︎ 犬が子供に蹴られました。（The dog was kicked by the child.） ⚫︎ The passive voice is often used to describe events, feelings, or experiences that happen to the subject. ⚫︎ It is formed by: ⚫︎ Ru-verbs: Remove る and add られる ⚫︎ U-verbs: Change the last sound of the verb from an 'u' sound to an 'a' sound (with corresponding vowel) and add れる ⚫︎ Irregular verbs: ⚫︎ する becomes される ⚫︎ 来る becomes こられる

The particle に plays a crucial role in passive sentences. ⚫︎ It marks the agent, or the person or thing that performs the action in the passive sentence. ⚫︎ It answers the question, "By whom?" or "By what?". ⚫︎ In the given sentence, 先生に indicates that the teacher is the one who did the praising. ⚫︎ For Example: ⚫︎ 泥棒は警察に捕まえられました。（The thief was caught by the police.） ⚫︎ 父は妹に叱られました。（Father was scolded by my younger sister.）

Understanding verb conjugation is essential for forming the passive voice. ⚫︎ The passive form of a verb is created by changing its stem and adding a suffix. ⚫︎ There are rules for both ru-verbs and u-verbs. ⚫︎ In the given sentence, ほめる (to praise) is a ru-verb, and its passive form is ほめられる (to be praised). ⚫︎ Let's see some other examples: ⚫︎ 食べる (to eat) -> 食べられる (to be eaten) ⚫︎ 書く (to write) -> 書かれる (to be written) ⚫︎ する (to do) -> される (to be done) ⚫︎ 来る (to come) -> 来られる (to be able to come / to be made to come)

Japanese sentence structure differs from English. ⚫︎ The basic Japanese sentence structure is Subject-Object-Verb (SOV). ⚫︎ The particle は or が usually marks the subject, and the particle を marks the direct object. ⚫︎ However, in passive sentences, the subject of the original active sentence becomes the subject of the passive sentence, and the agent is introduced by the particle に. ⚫︎ The order can vary slightly, but understanding the roles of the particles is key. ⚫︎ For Example: ⚫︎ Active: 先生が私を褒めました。（The teacher praised me.） ⚫︎ Passive: 私は先生に褒められました。（I was praised by the teacher.）

The auxiliary verbs れる and られる are essential for forming the passive voice. ⚫︎ They are added to the verb stem to create the passive form. ⚫︎ The choice between れる and られる depends on the verb's type. ⚫︎ Ru-verbs: Add られる ⚫︎ U-verbs: Change the final sound of the verb stem to the corresponding "a" sound (あ, い, う, え, or お) and add れる ⚫︎ The auxiliary verbs don't have separate meanings on their own; their function is to indicate the passive voice. ⚫︎ Understanding how to conjugate verbs with these auxiliary verbs is fundamental for creating passive sentences. ⚫︎ For instance: ⚫︎ 書く (to write) -> 書かれる ⚫︎ 食べる (to eat) -> 食べられる