Question

interest from my bank account was a good source of income to

Answer 1

不可以,to have 在这里是 如果拥有 的意思

少了to have,句子的意思就不一样了

例子

have good result in my English exam is good

和

to have good result in my English exam is good

不一样的

查一下 to have 的意思和用法,或许你就能明白了