This grammar sheet from Waterhouse provides examples of using the verb "to be" with he, she, and they in sentences. It shows how to conjugate the verb "to be" for subjects like Bill, Marla, John, George, and how to form contractions like "He's", "She's", and "They're". It also gives examples of questions using "is" and "are" along with positive and negative answers.

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Waterhouse Grammar Sheet
The verb be – he, she, and they
Bill is at home.
He’s at home.
Marla’s late.
She’s late.
John and George are sick.
They’re sick.
Bill is not here.
He’s not here.
Marla’s not at work.
She’s not at work.
John and George are not here.
They’re not here.
Is Bill here?
Yes, he is. / No, he’s not.
Is she late?
Yes, she is. / No, she’s not.
Are they sick?
Yes, they are. / No, they’re not.
Marla’s = Marla is
She’s = She is
He’s = He is
They’re = They are
Recuerda:Las contraccionessoncomunescuandousamospronombres"She'slate."perotambiéncuando usamosnombresensingular"Marla'slate".