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  2. Infrared - Wikipedia

    en.wikipedia.org/wiki/Infrared

    Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those of red light (the longest waves in the visible spectrum ), so IR is invisible to the human eye.

  3. French conjugation - Wikipedia

    en.wikipedia.org/wiki/French_conjugation

    The -ir verbs differ from the -er verbs in the following points: The vowel of the inflections is always -i-, for example -isse in the past subjunctive rather than the -asse of the -er verbs. A few of the singular inflections themselves change, though this is purely orthographic and does not affect the pronunciation: in the simple present and ...

  4. Imperfect - Wikipedia

    en.wikipedia.org/wiki/Imperfect

    Unlike in Spanish, the verbs "ver" (to see) and "ir" (to go) are regular in the Portuguese imperfect. Like in Italian, it is also commonly formed by combining the imperfect of the verb estar (estava, estavas, estava, estávamos, estáveis, estavam) with the gerund (for example, "falando", the gerund form of "falar", to speak, to talk).

  5. Verb - Wikipedia

    en.wikipedia.org/wiki/Verb

    As verbs in Spanish incorporate the subject as a TAM suffix, Spanish is not actually a null-subject language, unlike Mandarin (see above). Such verbs in Spanish also have a valency of 1. Intransitive and transitive verbs are the most common, but the impersonal and objective verbs are somewhat different from the norm. In the objective, the verb ...

  6. Spanish grammar - Wikipedia

    en.wikipedia.org/wiki/Spanish_grammar

    This is done in the following way: if the verb is an -er or -ir verb such as comer, poder, vivir, or compartir, replace the ending o with an a i.e. : Yo como; yo puedo; yo vivo → Yo coma; yo pueda; yo viva. If the verb is an -ar verb such as hablar or caminar replace the ending o with an e: i.e., Yo hablo; yo camino → Yo hable, yo camine.

  7. IR, PUP, NFI. What do all of those NFL roster designations mean?

    www.aol.com/sports/ir-pup-nfi-those-nfl...

    The same used to be the case if a player went on IR during the regular season, but the rules have been tweaked and amended a few times in recent years. Starting last year, players need to miss a ...

  8. Spanish verbs - Wikipedia

    en.wikipedia.org/wiki/Spanish_verbs

    The "stemless" verb ir belongs to this group, with yendo. For -er and -ir verbs whose stem ends in ñ or ll , the -iendo ending is reduced to -endo: tañer → tañendo, bullir → bullendo. [4] The gerund has a variety of uses and can mean (with haciendo, for example) "doing/while doing/by doing/because of one's doing/through doing" and so on.

  9. Regular and irregular verbs - Wikipedia

    en.wikipedia.org/wiki/Regular_and_irregular_verbs

    Verbs which in any way deviate from these rules (there are around 200 such verbs in the language) are classed as irregular. A language may have more than one regular conjugation pattern. French verbs, for example, follow different patterns depending on whether their infinitive ends in -er, -ir or -re (complicated slightly by certain rules of ...