The simple past tense

These time indicators indicate completed action in the past: yesterday, last night, last week, a week age, last year.

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The simple past tense of regular verbs

Paul walked to the stadium last Saturday.
Tom arrived early in class yesterday.
The rain stopped after 5 P.M last Monday.
The boys studied his math lesson last night.
Paul played football with his brothers.

Remarks

• The from, the present, the past of regular verbs by adding ed to the simple form of the verb (infinitive)
  Example: to open → opened; to work → worked
• If the verb end with e we simply put d
• If the vowel end with a consonant precede by only one vowel, we double the consonant and we put ed
  Example: travel → traveled
• If the verb end with y preceded by a consonant change y into before we add "ed"
• If the find y is preceded by a vowel, the y does not change
  Example: to enjoy → enjoyed
  to play → played