What is the verb form of walking on crutches?

There isn't a single verb that perfectly captures the act of walking on crutches. However, you can use various verbs and phrases to describe it, depending on the context:

General verbs:

* Crutch: This is the most direct and concise option. Example: "She had to crutch to the car."

* Hobbling: This implies a slow, difficult walk due to an injury. Example: "He hobbled along the sidewalk on his crutches."

* Limping: This emphasizes the uneven gait caused by using crutches. Example: "She limped towards the exit, leaning heavily on her crutches."

Phrases:

* Walking with crutches: This is a straightforward and descriptive option. Example: "He was walking with crutches after his surgery."

* Getting around on crutches: This focuses on the ability to move despite the injury. Example: "She was able to get around on crutches for the next few weeks."

* Propelling oneself with crutches: This emphasizes the physical act of using crutches to move. Example: "He propelled himself forward with his crutches, determined to reach the finish line."

Other possibilities:

* Crutching: This is a less common verb form, but it works in some contexts. Example: "The patient was crutching towards the therapy room."

* Using crutches: This is a general description, but it accurately conveys the action. Example: "She was using crutches to navigate the crowded street."

The best verb or phrase to use will depend on the specific situation and the nuance you want to convey.