par Daniel Hernández Il y a 4 années
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Tenses demonstrate the time of actions centered around the subject of the sentence. These actions are called verbs and change according to tenses.
There are four Past tenses:
Past Continuous is used for:
Some adverbs used with Past Continuous:
Past simple expresses:
Some adverbs used with Past Simple:
Structure:
Did + subject + Base Form of the Verb?
e.g. Where did you meet her?
-Cambia la consulta original por otra equivalente. -Forma de minimizar los resultados intermedios -Se basa en aplicar equivalencia de los operadores del algebra relacional
There are four Present tenses:
Present Continuous is used to indicate the ongoing time (now).
Some adverbs used with Present Continuous:
Present Simple is used for:
Some adverbs used with Present Simple: