You don't. Good dialogue doesn't write things like "she gasped" or "he postulated" - it pulls the readers out of the story so they start paying attention to how you're writing instead of to what you've written. Instead, describe the action so well that the readers know the person is going to gasp.
His jaw fell open. "How ... how did you do that?"
*Pant* Or "Whew!" or "Sigh" Or you could just write, "He panted hard!" But if it's for a dialogue, just write "Gasp"
Your incredulity is unfathomable. The level of her incredulity was broadcast with a loud gasp.
To breath fast or sharply
yes! so if I'm talking to you in a story... and you say: "So, do we have to write dialogue from a different person on a different line?" "Yes, you do have to write on a different line." "Thanks!"
Sigh I think
It will probably help if you think about a monologue as being dialogue -- it's just dialogue with only one person talking. You just write a speech, and that's monologue.
We gasp when we have difficulty breathing. We also gasp in reaction to emotional events, such as surprise, shock or disgust. In these cases it is an involuntary reaction.
When a person finds out that you are gay, sometimes they gasp.
Okay
Gasp - film - was created on 2009-08-28.
Dialogue is just as easy as everything else you write. It's just people talking.
The best way to learn to become an editor is to become a writer first. Editors must have a strong gasp of language, spelling and grammar, and there is no better way to practice these skills than to write, write, write.