Infinitive used to express purpose: I am buying some paint. I want to repaint my door. He opened the lion's cage. He intended to feed the lion. He rushed into a burning house. He wanted to save the child

1. I am buying some paint. I want to repaint my door.
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2. He opened the lion's cage. He intended to feed the lion.
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3. He rushed into a burning house. He wanted to save the child..
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4. He changed his address constantly. He wanted to elude the police.
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5. They employed the detective. They wanted to know what I did in the evenings.
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6. He rang the bell. He wanted to tell us that dinner was ready.
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Yêu cầu: infinitive used to express purpose.