"Did" - use present or past tense of verb?

[Akroyd]

For example the following:

Must it be:

The drunk man did not even took notice of the notes he gave the waiter.

or

The drunk man did not even take notice of the notes he gave the waiter.

And the following:

"I did give the waiter a tip," the man said.

or

"I did gave the waiter a tip," the man said.

[Mister Micawber]

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Welcome to English-Test.Net, Akroyd.

These are correct:

The drunk man did not even take notice of the notes he gave the waiter.

"I gave the waiter a tip," the man said.

For added stress, 'did give' is possible in your second sentence. 'Did' shows the past tense, and with the operator (do, does, did) we use the infinitive (or dictionary form) of the main verb.
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Native English teacher at Mister Micawber's

[Harry Smiith]

The drunk man did not even take notice of the notes he gave to the waiter.
"I did give the waiter a tip" the man said.
These sentences are correct.

[Mister Micawber]

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Sorry, Harry-- your first sentence is not. I'm not even sure what it is trying to say.
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Native English teacher at Mister Micawber's

[Harry Smiith]

[Mister Micawber]

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So, your revised sentence would be?...
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_________________
Native English teacher at Mister Micawber's

[Harry Smiith]

[Conchita]

[Mister Micawber]

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Oh yes, I see.
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Native English teacher at Mister Micawber's