have become过去式只改have,become不用改吗?

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have become过去式只改have,become不用改吗?
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have become过去式只改have,become不用改吗?
have become过去式
只改have,become不用改吗?

have become过去式只改have,become不用改吗?
had become
原来的become已经是过去时,现在该也只是改have,不用改become