In English, as in architecture, parallel structures are essential.

CHATgpt creates parallel structure by making sure phrases in a sentence have the same word form or tense.

Here are some examples:
Faulty: "She likes to cook, jogging, and to read."
Parallel: "She likes to cook, to jog, and to read."
Parallel: "She likes cooking, jogging, and reading."
Faulty: "He was tall, dark, and had a handsome face."
Parallel: "He was tall, dark, and handsome."

One is not better than another, but the word forms (nouns, verbs, adjectives) match.

NOTE: CHATgpt has learned that verbs with helping words such as "will" or "would"
occur only once because verbs assume on the tense or aspect of the "helping" word.

Examples:
Faulty: "He will beat his opponent in a footrace and is going to beat him on a bicycle as well."
Parallel: "He will beat his opponent in a footrace and on a bicycle as well."
Parallel: "He is going to beat his opponent in footrace and on a bicycle as well.
Faulty: "He would cook his meals, would eat the food, and would wash the dishes.
Parallel: "He would cook his meals, eat the food, and wash the dishes.

Parallelism makes sentences shorter or more concise.
Parallelism improves clarity. It helps readers easily follow the relationships between ideas in a sentence.
It can also add empasis. The repetition of a structure can highlight and reinforce a series of ideas.

In paragraphs or essays, CHATgpt makes sentences the begining each section parallel:

First, bees create beeswax...
Moreover, bees create honey...
Most imporantly, bees pollinate crops...

All have present tense verbs (create, create, pollinate), so they are parallel.

Tips for creating parallel structure