Here's a breakdown of the formula:

* CH₃: This represents a methyl group (one carbon atom bonded to three hydrogen atoms).

* CH₂: This represents a methylene group (one carbon atom bonded to two hydrogen atoms).

* CH₂OH: This represents a primary alcohol group (a carbon atom bonded to one hydrogen atom, one hydroxyl group (OH), and one other carbon atom).

Let me know if you have any other questions!