collective nouns: singular or plural?

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[yohanasales]

Thank you so much. I’m Brazilian and I was very confused, but now I understood.

[alo-dxge]

Thanks a lot my dad dont wanna help me study so this helped me a lot for my exam :D

[Jaf.moh]

Hi, tnx alot for your awesome video. I have a question. I HAVE WATCHED a VIDEO ABOUT collective nouns and the teacher gave the example that "the police fines a driver who exceed the speed limits. On the other hand, you mentined that "police is always plural noun".
So, I got a little bit confused. Could you please explain on it.
Thank you😊

[pikkusingh]

good explanation. cleared all my doubts.

[camtube]

Thieves was stealing TVs last night
A pack of wolves was hunting a dog

Both of these sentences are plural collective nouns but the action is one entity, so the auxiliary verb would be singular? I can't wrap my head around it, it feels against everything I've been taught haha!

Or are these rules only for present simple auxiliary verbs?

[megnam]

Thank you so much 🙏🙏🙏I have a question. Could you please explain how we use "Supposed to" in English?

[kutikata]

What about We Are American? Without using S? Same pattern for a group?

[dominicyimiten]

What about "everybody, everyone" are they singular or plural?