appear and appears

[Debra Kirk]

The patient's insight and judgment ( appear appears ) to be poor.

Could you let me know the correct answer and the rule for appear and appears? ​

 

[MikeNewYork]

The patient's insight and judgment ( appear appears ) to be poor.

Could you let me know the correct answer and the rule for appear and appears? ​

The rule is not about the verb; the rule is about subject-verb agreement. The subject has two items so it is plural; therefore the verb must be plural "appear".