Mostra-me frases de exemplo com The usage of "as be" .Diz-me o máximo de expressões diárias possíveis.

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This is a great question! I have never thought about this before. :)

“As is” is a normal way to point out the similarity between two things. Your sentence with “as is my brother” is very natural.

Some more examples:
“That is a great story, as is this one.”
“Your dog is brown, as is mine.”

The meaning is the same as “so is,” but the two phrases are written a little differently, because “so” and “as” are different types of words. If you say “so is,” you must first say “and.” The phrase “and so is” is more commonly used than the phrase “as is.”

Examples:
“I am a boy, and so is my brother.”
“That is a great story, and so is this one.”
“Your dog is brown, and so is mine.”

I hope this helps! :)