Here are some examples:
* El que *está leyendo* es mi amigo. (The one who *is reading* is my friend.)
* El que *te llamó* es mi hermano. (He who *called you* is my brother.)
* El que *tiene más paciencia* ganará. (The one who *has more patience* will win.)
"El que" can also be used in conjunction with other words to create different meanings, such as:
* El que sea: It doesn't matter which one.
* El que más te guste: The one you like the most.
* El que menos te guste: The one you like the least.
It's important to note that "el que" is a masculine singular form. For feminine singular, you would use "la que," and for plural, you would use "los que" or "las que."