It is my first direct +to do 还是doing,

It is my first direct +to do 还是doing,
It is my first direct +to do 还是doing,

It is my first direct +to do 还是doing,
doing.动词 ➕宾语 所以为doing

应该是to do

都可以但意思不一样。+to do是简单语法表明＂去做＂；
doing的话要看后面的意思了，例：it is my first direct which is finding my money to buy it