Final answer:
Linking verbs are the type of verb that is produced in a static location and cannot be altered without changing the meaning of the sign.
Step-by-step explanation:
The type of verb that is produced in a static location and cannot be altered without changing the meaning of the sign is a linking verb. Linking verbs are completed by a subject complement, which can be an adjectival or a noun phrase that describes or identifies the subject. Examples of linking verbs include seem, look, smell, sound, and become.