Eligible for three-year-rule for US citizenship?

Both me and my wife came to US with the green cards 10 years ago and I naturalized 4 years ago. Does my wife can apply US citizenship for three-year-rule although she didn't take her green card through spouse's citizenship?
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She can apply for naturalization based on her marriage to a U.S. citizen. She should send the following four items:

Evidence that her spouse have been a U.S. citizen for the last three years:

Your Naturalization Certificate,

Your current marriage warrant, and

Proof of termination of all prior marriages of your spouse - divorce decree(s), annulment(s), or death certificate(s); and

Documents referring to her and you:

Tax returns, wall accounts, leases, mortgages, or birth certificates of children, or

Internal Revenue Service (IRS) - certified copies of the income tax forms that you both file for the past three years,

An IRS tax return transcript for the last three years.
No, she isn't eligible for the three year rule, however as she's been a legal permanent resident for 10 years, she is eligible to apply very soon.
She doesn't need the marriage to apply for citizenship within this case, cuz she's been resident since 10 years ago. And the requirement is just 5.


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