Past or present perfect tense for event happened last night [duplicate]

tenses grammaticality present-perfect past-tense

Possible Duplicate:
How do the tenses in English correspond temporally to one another?

Since watching TV is a completed action which happened last night, which one is correct?

  • Last night I have watched TV.
  • Last night I watched TV.

When a clause contains a specific past time reference, such as last night, the normal verb form is the past tense.

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