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  2. Present continuous - Wikipedia

    en.wikipedia.org/wiki/Present_continuous

    The present continuous is formed by the present tense form of be and the present participle (-ing form) of the verb. [3] [4] For example, you would write the verb work in the present continuous form by adding the -ing suffix to the verb and placing a present tense form of be (am, are, is) in front of it: [3] I am working. You are working. She ...

  3. Glossary of geography terms (A–M) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geography_terms...

    This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic ...

  4. Simple present - Wikipedia

    en.wikipedia.org/wiki/Simple_present

    The simple present, present simple or present indefinite is one of the verb forms associated with the present tense in modern English. It is commonly referred to as a tense, although it also encodes certain information about aspect in addition to the present time. The simple present is the most commonly used verb form in English, accounting for ...

  5. Glossary of geology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geology

    Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...

  6. Present tense - Wikipedia

    en.wikipedia.org/wiki/Present_tense

    Simple present : The simple present tense is employed in a sentence to represent an action or event that takes place in the present regularly. Present perfect : The present perfect tense is utilized for events that begin in the past and continue to the moment of speaking, or to express the result of a past situation.

  7. River Continuum Concept - Wikipedia

    en.wikipedia.org/wiki/River_continuum_concept

    The River Continuum Concept is based on the idea that a watercourse is an open ecosystem that is in constant interaction with the bank, and moving from source to mouth, constantly changing. [4] Basis for this change in the overall system is due to the gradual change of physical environmental conditions such as the width, depth, water, flow ...

  8. Uses of English verb forms - Wikipedia

    en.wikipedia.org/wiki/Uses_of_English_verb_forms

    The simple present or present simple is a form that combines present tense with "simple" (neither perfect nor progressive) aspect. In the indicative mood it consists of the base form of the verb, or the -s form when the subject is third-person singular (the verb be uses the forms am, is, are).

  9. Continuum - Wikipedia

    en.wikipedia.org/wiki/Continuum

    Continuum theory of specific heats of solids, see Debye model; Triune continuum, trinity of continual representations in general system modeling defined in the theory of triune continuum, used in the triune continuum paradigm; Continuous spectrum, referred to simply as the continuum in contrast to discrete spectral lines