Colorful Ideas

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Present Continous tense is used when :
1. to express the idea when something is happening or in progress but also can be used to tell about something which is not happen now.
i.e. The students are studying English in class when the headmaster comes with the guess into the class.

I write

Simple Present tense is used when :
1. the action happens all the time or habitually, in the past, present and future
2. the action is general truth
3. the action is not only happening now
4. the statements is always true

Tense is the time of verb's action or state of being, such as past, present, or future.
Tense that should be recognized are :
1. Present tense :
    a. Present Simple
    b. Present Continous
    c. Present Perfect
    d. Present Perfect Continous

In English language, there is a classification for the words in sentences according to their functions in sentences:
out inflection, in modification of or in addition to a verb

1. Noun         : names a person, place, or thing
    i.e. : Robert, desk, garden 

2. Pronoun   : takes the place of a noun 
    i.e.  :  I, you, he, she, it, ours, them, who