以下是一些关于过去时态句型变化规则的口诀：
1. 过去完成时态：先选主语，后选谓语，主语+过去完成时态，谓语+表语。
2. 过去进行时态：主语+ be/ was/ were + doing,或者主语+ be/ was/ were + to do。
3. 过去将来时态：主语+ be/ was/ were + going to do,或者主语+ be/ was/ were + been to do。
4. 过去完成时态：先选主语，后选谓语，主语+ have/ had + done,或者主语+ have/ had + been to。
5. 过去进行时态：主语+ be/ was/ were + doing,或者主语+ be/ was/ were + been to do。
6. 过去将来时态：主语+ be/ was/ were + going to do,或者主语+ be/ was/ were + been to do。
7. 过去完成时态：先选主语，后选谓语，主语+ have/ had + done,或者主语+ have/ had + been to。这些规则可以帮助记忆和理解过去时态的句型变化，但请注意，这些规则并不是绝对的，有些情况下需要根据上下文来理解。
