I can and I do. I have a feeling that the MBTI 16 types is a bit of bullshit. I do agree with my temperament NT, but anything else is fluctuant. I or E, P or J. Let me give you an example. Ti user with no Te wouldn't be able to do a plan. ENTP supposed to be Ti and I still can plan, even more I turned it into my natural way of achieving things. My bet is that we all can use all of the cognitive functions. Ne, Ni, Te, Ti all of that seems OK for me. Fe and Si are draining me. That meant to be what I'm about to develop - fuck that.