Match the incorrect verb tense or form reference to the correct

Question

solution: An incorrect or missing verb ending
Solutions:
a. Replace the past participle with the past form of the verb, or
add the auxiliary verb have to the past participle to form a
complete verb.
b. Use the past participle form of an irregular verb not the past
form, when you use the auxiliary verb have.
c. Add -ed to a regular verb to form the past tense and the past
participle.
d. Irregular verbs form their past tense and past participle in
some way other than by adding -ed.

Answer 1

Example: He have walked to the store.

Solution: He has walked to the store. (Add "has" before the past participle "walked" to form a complete verb in the present perfect tense.)