First, I would like to apologize if my question has been answered somewhere, but I'm overwhelmed with the search results repeatedly telling me about the using of be going to do to express the future.
My question is how to tell that I'm moving right now in order to do something, e.g. to open the door. Specifically, can I use the word go or some of its forms for that purpose?
My first thought was to say I'm going to open the door. However, I have been taught the construction to be going to do something means to do something in near future.
What if I say I'm going to the door to open it? Is it still about the future? (=I'm going to go to the door to open it?)
Thank you for all your help.
UPD: Link to the picture