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  2. Tense–aspect–mood - Wikipedia

    en.wikipedia.org/wiki/Tense–aspect–mood

    The have/has/had + verb + -ed construction is negated by inserting not between the two words of the affirmative (have/has/had not taken). The construction "am/is/are" + verb + -"ing" indicates present tense combined with progressive aspect if the verb is innately non-stative, as in "I am taking it," or combined with innate stative aspect, as in ...

  3. Pluperfect - Wikipedia

    en.wikipedia.org/wiki/Pluperfect

    The pluperfect is expressed by combining the auxiliary verb fost or the short version fo ' (= "was" in English or "war" in German) with the participle, which (quite difficult to explain) is stated in its feminine form. Examples: o fost foastă (or o fo' foastă) = he had been; am fost văzută = I had seen; or fost venită = they had come.

  4. Döbereiner's triads - Wikipedia

    en.wikipedia.org/wiki/Döbereiner's_triads

    By 1829, Döbereiner had found other groups of three elements (hence "triads") whose physical properties were similarly related. [2] He also noted that some quantifiable properties of elements (e.g. atomic weight and density) in a triad followed a trend whereby the value of the middle element in the triad would be exactly or nearly predicted by taking the arithmetic mean of values for that ...

  5. James while John had had had had had had had had had had had ...

    en.wikipedia.org/wiki/James_while_John_had_had...

    The sentence can be given as a grammatical puzzle [7] [8] [9] or an item on a test, [1] [2] for which one must find the proper punctuation to give it meaning. Hans Reichenbach used a similar sentence ("John where Jack had...") in his 1947 book Elements of Symbolic Logic as an exercise for the reader, to illustrate the different levels of language, namely object language and metalanguage.

  6. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  7. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology ...

  8. List of superseded scientific theories - Wikipedia

    en.wikipedia.org/wiki/List_of_superseded...

    This list includes well-known general theories in science and pre-scientific natural philosophy and natural history that have since been superseded by other scientific theories. Many discarded explanations were once supported by a scientific consensus , but replaced after more empirical information became available that identified flaws and ...

  9. Cheat sheet - Wikipedia

    en.wikipedia.org/wiki/Cheat_sheet

    A cheat sheet that is used contrary to the rules of an exam may need to be small enough to conceal in the palm of the hand Cheat sheet in front of a juice box. A cheat sheet (also cheatsheet) or crib sheet is a concise set of notes used for quick reference.