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  2. Simple past - Wikipedia

    en.wikipedia.org/wiki/Simple_past

    Regular verbs form the simple past end-ed; however there are a few hundred irregular verbs with different forms. [2] The spelling rules for forming the past simple of regular verbs are as follows: verbs ending in -e add only –d to the end (e.g. live – lived, not *liveed), verbs ending in -y change to -ied (e.g. study – studied) and verbs ending in a group of a consonant + a vowel + a ...

  3. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    Most verbs have three or four inflected forms in addition to the base form: a third-person singular present tense form in -(e)s (writes, botches), a present participle and gerund form in -ing (writing), a past tense (wrote), and – though often identical to the past tense form – a past participle (written).

  4. Mathematics education in the United States - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education_in...

    A typical sequence of secondary-school (grades 6 to 12) courses in mathematics reads: Pre-Algebra (7th or 8th grade), Algebra I, Geometry, Algebra II, Pre-calculus, and Calculus or Statistics. However, some students enroll in integrated programs [ 3 ] while many complete high school without passing Calculus or Statistics.

  5. Elementary algebra - Wikipedia

    en.wikipedia.org/wiki/Elementary_algebra

    Unlike abstract algebra, elementary algebra is not concerned with algebraic structures outside the realm of real and complex numbers. It is typically taught to secondary school students and at introductory college level in the United States, [4] and builds on their understanding of arithmetic. The use of variables to denote quantities allows ...

  6. English Grammar in Use - Wikipedia

    en.wikipedia.org/wiki/English_Grammar_In_Use

    The book is in use by English language students, especially those from non-English-speaking countries, as a practice and reference book. Though the book was titled as a self-study reference, the publisher states that the book is also suitable for reinforcement work in the classroom. [3]

  7. Perfective aspect - Wikipedia

    en.wikipedia.org/wiki/Perfective_aspect

    In other languages such as Latin, the distinction between perfective and imperfective is made only in the past tense (e.g., Latin veni "I came" vs. veniebam "I was coming", "I used to come"). [3] However, perfective should not be confused with tense—perfective aspect can apply to events in the past, present, or future.

  8. Sequence of tenses - Wikipedia

    en.wikipedia.org/wiki/Sequence_of_tenses

    In Latin, the sequence of tenses rule affects dependent verbs in the subjunctive mood, mainly in indirect questions, indirect commands, and purpose clauses. [4] If the main verb is in one of the non-past tenses, the subordinate verb is usually in the present or perfect subjunctive (primary sequence); if the main verb is in one of the past tenses, the subordinate verb is usually in the ...

  9. Mathematics education - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education

    Games can motivate students to improve skills that are usually learned by rote. In "Number Bingo," players roll 3 dice, then perform basic mathematical operations on those numbers to get a new number, which they cover on the board trying to cover 4 squares in a row. This game was played at a "Discovery Day" organized by Big Brother Mouse in Laos.

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