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  2. Spanish irregular verbs - Wikipedia

    en.wikipedia.org/wiki/Spanish_irregular_verbs

    There are two kinds of changes that can affect stem vowels of some Spanish verbs: diphthongization and vowel raising. Both changes affect -e-or -o-in the last (or only) syllable of a verb stem. Diphthongization changes -e-to -ie-, and -o-to -ue-. Vowel raising changes the mid vowels-e-and -o-to the corresponding high vowels: -i-and -u-respectively.

  3. Spanish grammar - Wikipedia

    en.wikipedia.org/wiki/Spanish_grammar

    In -er verbs (and some -ir verbs, like disminuir) whose stem ends with a vowel, the i of the -iendo ending is replaced by y: e.g. leer, traer, creer → leyendo, trayendo, creyendo. In -ir verbs whose stem ends with e —such as reír and sonreír —the stem vowel e is raised to i (as is typical of -ir verbs), and this i merges with the i of ...

  4. Shewhart individuals control chart - Wikipedia

    en.wikipedia.org/wiki/Shewhart_individuals...

    In statistical quality control, the individual/moving-range chart is a type of control chart used to monitor variables data from a business or industrial process for which it is impractical to use rational subgroups. [1] The chart is necessary in the following situations: [2]: 231

  5. Consonant mutation - Wikipedia

    en.wikipedia.org/wiki/Consonant_mutation

    Consonant mutation is change in a consonant in a word according to its morphological or syntactic environment.. Mutation occurs in languages around the world. A prototypical example of consonant mutation is the initial consonant mutation of all modern Celtic languages.

  6. CUSUM - Wikipedia

    en.wikipedia.org/wiki/CUSUM

    In statistical quality control, the CUSUM (or cumulative sum control chart) is a sequential analysis technique developed by E. S. Page of the University of Cambridge. It is typically used for monitoring change detection . [ 1 ]

  7. French verb morphology - Wikipedia

    en.wikipedia.org/wiki/French_verb_morphology

    French verbs have a large number of simple (one-word) forms. These are composed of two distinct parts: the stem (or root, or radix), which indicates which verb it is, and the ending (inflection), which indicates the verb's tense (imperfect, present, future etc.) and mood and its subject's person (I, you, he/she etc.) and number, though many endings can correspond to multiple tense-mood-subject ...

  8. Third declension - Wikipedia

    en.wikipedia.org/wiki/Third_declension

    The third declension is a category of nouns in Latin and Greek with broadly similar case formation — diverse stems, but similar endings. Sanskrit also has a corresponding class (although not commonly termed as third), in which the so-called basic case endings are applied very regularly.

  9. Serbo-Croatian grammar - Wikipedia

    en.wikipedia.org/wiki/Serbo-Croatian_grammar

    Serbo-Croatian is a South Slavic language that, like most other Slavic languages, has an extensive system of inflection.This article describes exclusively the grammar of the Shtokavian dialect, which is a part of the South Slavic dialect continuum [1] and the basis for the Bosnian, Croatian, Montenegrin, and Serbian standard variants of Serbo-Croatian. [2] "