sentence meaning - Did remember/ remembered

There is a sentence from GoT: And perhaps the dragon did remember, but Dany could not

What the differences between sentences:

And perhaps he did remember, but she could not

And perhaps he remembered, but she could not

Is it correct to use did + Verb?

Answer

It is an idiomatic usage of do/does/did to add emphasis to the verb they precede:

We do not normally use do or does in affirmative sentences, but we can use them for emotive or contrastive emphasis when we feel strongly about something:

• 
  

  *She thinks he doesn't love her, but he does love her. He really does!

  
  



• 
  

  You do look pretty in that new outfit! Quite stunning!

  
  


• 
  

  Are you all right? You do look a bit pale. Do please sit down.

  
  


• 
  

  I don't see very much of my old friends now, but I do still email them. Was that a joke? I do believe you're teasing me!*

  
  

When we are using the auxiliaries do and does for contrastive or emotive emphasis like this, we give them extra stress in pronunciation to make them sound louder, longer or higher in tone.

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