Neither my mother nor my father came to the school to collect me.
Its called a compound sentence with a compound subject
A sentence with two or more subjects connected by the conjunctions "and" or "or" is called a compound subject.
compound subject
Here is an example of a sentence that has two or more subjects that are connected by the conjunction and. The boys and girls are going to the beach.
compound subject
a compound sentence
If you mean a sentence like: Alex and Becky went to the store. Then this is a simple sentence.
A sentence with two or more subjects joined by a conjunction and that share the same verb is called a compound subject sentence. In this type of sentence, the subjects are connected by a conjunction such as "and" or "or" and the verb is used only once to describe the action of both subjects.
compound
"The cat and the dog play together in the yard."
A sentence that has two or more subjects connected by conjunctions is known as a compound sentence. An example of a compound sentence would be: "Jane and Bob love science, but they do not like math."
The structure is likely a compound subject. This means that two or more subjects are connected by a conjunction and share the same verb in the sentence.
The cat and the dog played together in the park.