我和我的妻子结婚三年了。

Wǒ hé wǒde qīzi jiéhūn sān niánle.

My wife and I have been married for three years.

她是我的妻子。

Tā shì wǒde qīzi.

She is my wife.

我的妻子是一名作家。

Wǒde qīzi shì yì míng zuòjiā.

My wife is a writer.