How do you say this is my daughter in Cantonese?

There are a few ways to say "This is my daughter" in Cantonese, depending on the context and formality:

Formal:

* 呢個係我個女 (nei go hai ngo ge ne) - This is my daughter (literally: this one is my daughter)

* 呢位係我個女 (nei wai hai ngo ge ne) - This is my daughter (more formal, using "wei" for "person")

Informal:

* 呢個係我囡囡 (nei go hai ngo naam naam) - This is my daughter (using a more informal term for "daughter")

* 佢係我個女 (keui hai ngo ge ne) - She is my daughter (using "keui" to refer to your daughter)

With a name:

* 呢個係我個女，叫 [name] (nei go hai ngo ge ne, giu [name]) - This is my daughter, her name is [name]

* 佢係我個女，叫 [name] (keui hai ngo ge ne, giu [name]) - She is my daughter, her name is [name]

Important notes:

* The tone and pronunciation of the words will affect the meaning.

* Using "ne" (女) is the most common way to refer to a daughter, but "naam naam" (囡囡) is also widely used.

* The level of formality depends on the situation and your relationship with the person you are talking to.

For more accurate pronunciation, it's highly recommended to listen to native Cantonese speakers or use pronunciation guides online.