If you do decide to make an application, what you do is send it directly tom

If you do decide to make an application, what you do is send it directly tom
这句话感觉语法错误 is send 两个动词怎么一起用了呢?
不定式作表语时,如主语部分含有实义动词do,且句子的时态为一般现在时或一般过去时(多为is或was),不定式可以带to也可不带to
(1)What we must do now is(to) find anther person to help us. (2)All he could do was (to) rush into the room.
如句子的动词时态不是一般现在时或一般过去时,作表语的动词不定式一般要带to (1)She knew that all she would have to do would be to stop crying.