Música: Mrs Potato Head - Melanie Martinez

Tem uma música da Melanie Martinez chamada Mrs Potato head e tem uma parte que ela fala: "Even if her face don't stay together" O correto não seria doesn't stay together, já que her face=it It=Does ? Me tirem essa dúvida,obrigado.
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Avatar do usuário Ricardo F. Bernardi 8850 16 163
The same goes on Hedley's song I won't let you go [...]"And even if it don't stop raining darling"[...] or Shania's If It Don't Take Two.
We already have this discussion here on English Experts with the verb to be in the past tense.

You should read:
(1) https://www.englishexperts.com.br/forum/por-que-o-certo-e-if-i-were-ao-inves-de-if-i-was-t6329.html
(2) https://www.englishexperts.com.br/forum/if-i-was-x-if-i-were-qual-utilizar-t14240.html

If you find yourself debating whether to use “was” or “were”, or something similar in a sentence, it’s likely that you’re dealing with an unreal conditional sentence. As a refresher, an unreal conditional sentence expresses events that are hypothetical or improbable.

Typically, an unreal conditional sentence begins with an if clause containing the past tense or past perfect tense of a verb followed by a conditional clause containing a modal verb such as “would.” Consider the following sentences:

If I had told you the answer, I would have been cheating. If I had run the race, I would feel accomplished.

In both sentences above, the “if” clause contains a form of the past tense of the verb. There is one exception to this rule, however. If the verb in the if clause is “to be,” use “were,” even if the subject of the clause is a third person singular subject (i.e., he, she, it). See the examples below for an illustration of this exception:

If I was a rich man, I would make more charitable donations.
If I were a rich man, I would make more charitable donations.

If he was here right now, he would help us.
If he were here right now, he would help us.

Remember, though, that this exception applies only to unreal conditionals—that is, situations that do not reflect reality. (Hint: unreal conditionals often contain words like “would” or “ought to.”) When you’re talking about a possibility that did happen or might be true, use “was” and “were” as you normally would.

If I were rude to you, I apologize.
If I was rude to you, I apologize.

I hope I've helped.

Enjoy your studies!