Correct spelling, explanation: controls can function as both a noun and a verb. As a noun, it is the plural of control, which can refer to the ability to influence something or to devices used for operating machines or systems, such as remote controls. In this case, forming the plural follows the standard rule of adding -s to a regular noun. As a verb, controls is the third-person singular present tense of to control. The incorrect spelling controlls does not exist in English.

Definition of controls:
1. Verb (3rd person present), to order, limit, or rule something, or someone’s actions or behavior
She carefully controls the temperature in the laboratory to ensure accurate results.
The manager controls the budget to prevent unnecessary expenses.
2. Noun (plural), devices that are used to operate a machine, vehicle, or aircraft
The remote has several controls for adjusting the volume and brightness.
He spent hours learning the different controls on the new software.

Collocations with controls:
Some of the most commonly used collocations include:
1. Manual controls: physical buttons or levers that require human input to operate.
The airplane is equipped with both digital and manual controls for the pilot.
2. Steering controls: the mechanisms used to direct the movement of a vehicle or machine.
The car’s steering controls felt much smoother after the recent maintenance.
3. User controls: settings or features in software or equipment that allow the user to adjust preferences or settings.
The app has easy-to-use user controls that allow you to customize your experience.
4. Remote controls: a device used to control equipment from a distance, such as a television or drone.
He picked up the remote controls to change the channel and adjust the volume.

Incorrect spelling, explanation: controlls is a mistake because it doesn’t follow standard English spelling rules. When adding the plural -s or third-person singular -s to words, the final consonant is typically not doubled unless a specific rule applies. In the case of control, it ends with a single -l following a vowel, and standard English rules do not require doubling the consonant when adding -s. Therefore, the correct form is controls, not controlls.