all the things my mother did was to want me to h

all the things my mother did was to want me to h

没有错.
all the things my mother did 是带了个后置定语的主语
was 谓语 [things 为复形, 换为were]
to want me to .... 是不定式作表语

完全可以的. "我妈妈所做的一切是为了我有一个更好的生活"

时态上有问题，all the things my mother has done was to want me to have a better life.

All the things my mother did 【were】 to want me to have a better life.追答主谓一致

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