Simple past is formed for regular verbs by adding -d or – ed to the root of a word. Examples: He walked to the store, or They danced all night.. A negation is produced by adding did not and the verb in its infinitive form. Example: He did not walk to the store. Question sentences are started with did as in Did he walk to the store?

Simple past is used for describing acts that have already been concluded and whose exact time of occurrence is known. Furthermore, simple past is used for retelling successive events. That is why it is commonly used in storytelling.



Present perfect is formed by combining have/has with the main verb’s past participle form: I have arrived. A negation is produced by inserting not after have/has: I have not arrived. Questions in present perfect are formulated by starting a sentence with have/has: Has she arrived?

Present perfect is used for describing a past action’s effect on the present: He has arrived. Now he is here. This holds true for events that have just been concluded as well as for events that have not yet occurred.


Referensi dari : Wikipedia

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