He didn’t came or He didn’t come.
I didn’t told or I didn’t tell.
Many times people make mistake while saying these sentences.
Past Simple Tense is used to explain about our past experiences or the action which is completed few moments ago. We use second form of the main verb along with the subject only in positive sentences. We Sometimes also use Verb First form with auxiliary (did) to emphasize the action. For Negative or Interrogative Sentences we use Did + Verb (1st form)
Examples:
Subject + Verb (2nd form) + Object
I wrote a letter.
You gave me money.
She had her breakfast.
Subject + Did + Verb (1st form) + object
I did write a letter.
You did give me money.
She did have her breakfast.
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