She couldn't remember any more 意思就是“再也想不起来了”
She couldn't remember some more 一方面没有这种说法,二方面也和上句重复.
she swam to the shore having spent the night in the water
动词不定式having spent 是原因状语从句.had spent 不能做状语从句.但是可以这么说：she swam to the shore and had spent the night in the water.