The verbs dare and need do not require auxiliaries when used in the interrogative; for example, “need I?” is as acceptable as “do I need?” Excluding the auxiliaries themselves (like be, do, have), ...
Consider: I need to do this. I need do this. My English grammar knowledge tells me that "need" doesn't have the same status as the modal verbs "may", "can", "should" and what not. Hence the second ...
Is it appropriate to omit to after ought? I ought to be disciplined for my insolence. Vs. I ought be disciplined for my insolence. Is it okay to omit the to?