[Grammar] does father has or have

[Oceanlike]

- Does father have breakfast prepared for him, for tomorrow?

Although father is a singular subject, it sounds better with have than has. Please help me to understand the grammar rule behind this.

Thank you!

 

[SoothingDave]

"Does" is an auxiliary (helping) verb. With auxiliary verbs, you don't conjugate the main verb, you use the bare infinitive.

"He has breakfast prepared," but "he does have breakfast prepared."

 

[Oceanlike]

Thank you, SoothingDave. So sorry that I don't understand your explanation.

What do you mean by "with auxiliary verbs, you don't conjugate the main verb...." Can you explain with even simpler words?

Sorry and thank you.

 

[emsr2d2]

After "does" (an auxiliary verb), use the infinitive form of the verb.

He has breakfast.
Does he have breakfast?

He plays tennis?
Does he play tennis?