No, "GNA" is not a commonly recognized abbreviation for "gonna." "Gonna" is a slang contraction of "going to," and while it's frequently used in informal speech and writing, it doesn't have a widely accepted abbreviation like "gonna."
It's possible you might have encountered "GNA" in a specific context where it was used as a personal shorthand or abbreviation within a particular group or community. However, it's not a standard abbreviation for "gonna" in general usage.
Possible Reasons for Confusion
- Visual Similarity: "GNA" and "gonna" share some letters, which might lead to confusion, especially in informal settings or online communication where abbreviations are common.
- Misinterpretation: You might have encountered a typo or a misspelling of another word that resembled "GNA."
Remember: While "gonna" is a common contraction, it's generally best to use the full form "going to" in formal writing and professional communication.