-(으)려고 하다 is an expression itself, so 하 cannot be changed like 할. -(으)려고 하다 = be going to (verb) / try to (verb) 지금 자려고 하거든요. I'm going to sleep now. 좀 어렵긴 한데 친구가 준 책이라서 어떻게든 읽으려고 하는 중이야. It's sorta difficult, I'm trying to read it somehow since my friend gave me it. 아까 깨우려고 했는데 피곤한 것 같아서. I was about to wake you up a few minutes ago but you looked tired so.(I didn't waken you) 어제 다 하려고 했어요. I tried to do it all yesterday.

What you asked has the meaning of "you intend to". I think You'd better use with 할 in front of 려고 하다.For example, 나는 숙제를 할려고 한다(I intend to do homework.) It looks present tense, but normally we use that as a future tense. I hope I don't make you confused, Bye~