The word 'chooser' is a noun
noun is choise that is formed from the verb choose.
The noun form is choice.
The noun forms for the verb to choose are chooser and the gerund, choosing.
The noun forms for the verb to choose are chooser and the gerund, choosing. A related noun form is choice.
The abstract noun form for the verb to choose is the gerund, choosing.A related abstract noun form is choice.
The abstract noun form for the verb to choose is the gerund, choosing.A related abstract noun form is choice.
The abstract noun form of the verb to choose is the gerund, choosing.A related abstract noun is choice.
The noun forms for the verb to choose are chooser and the gerund, choosing.A related noun form is choice.
It depends on what noun you want to write. Then you just spell it properly.
Write moon as progressive noun
The noun forms of the verb 'to write' are writer and the gerund, writing.
A noun form for the verb to write is writer, one who writes, or the verbal noun (gerund) writing.