Question

I have bought the book since yesterday.这个句子对吗？

Answer 1

这个句子不对。

因为时间状语 since yesterday 是一个表示一段时间的短语，这样就要求句子（肯定句/疑问句）的谓语动词必须是延续性动词，但是此句中的动词 buy 却是一个瞬间性动词。

建议改成：

I have had the book since yesterday.

Answer 2

不对
buy是终止性动词，它的现在完成时态的肯定式不能与表示一段时间(for 短语，since 短语，how long)的时间状语连用
bought改为had
即
I have had the book since yesterday.

Answer 3

不对的，含有since和for的现在完成时，句子中的动词不能用短暂性动词，短暂性动词需要变成延续性动词，bought对应buy是短暂性动词，需要变成延续性动词keep，keep的过去分词是kept，所以bought变成kept
aqui te amo。