Grammar 9th grade

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Time Expressions

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Time expressions indicate when an action occurs. Examples include 'a few years ago', 'already', and 'never'.

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Real Conditional I

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The real conditional is used to talk about real and possible situations. Structure: If + present simple, will + base verb. Example: 'You should ask the teacher again if you don't understand the material.'

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Present Perfect

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The present perfect tense is used to indicate actions that occurred at an unspecified time before now. Structure: has/have + past participle. Example: 'He has already paid his debt to society.'

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Irregular Verbs

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Irregular verbs do not follow the regular pattern of adding -ed for the past tense. Example: 'choose' (present) becomes 'chose' (past).

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Present Perfect Usage

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The present perfect is often used with 'yet' and 'already'. 'Yet' is used in negative sentences and questions, while 'already' is used in affirmative sentences.

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Modal Verbs

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Modal verbs express necessity, possibility, permission, or ability. Examples include 'can', 'may', 'must', and 'should'.

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Past Simple Tense

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The past simple tense describes actions that happened at a specific time in the past. Structure: verb + -ed for regular verbs. Example: 'I walked to the store.'

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Future Simple Tense

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The future simple tense describes actions that will happen in the future. Structure: will + base verb. Example: 'I will go to the party.'

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Subject-Verb Agreement

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Subject-verb agreement means the subject and verb must agree in number. Example: 'He runs' vs. 'They run'.

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Adjectives and Adverbs

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Adjectives describe nouns, while adverbs modify verbs, adjectives, or other adverbs. Example: 'She is a quick runner' (adjective) vs. 'She runs quickly' (adverb).