CONSTRUCTIONS OF THE INFINITIVE WITH VERBS OF hindering 2038
Verbs signifying (or suggesting) to hinder take both the simple infinitive and the articular infinitive. Such verbs may take the strengthening but redundant negative μή ( cross2739); and some, when themselves negatived or appearing in a question expecting a negative answer, admit the addition of the sympathetic οὐ ( cross2742). Hence we have a variety of constructions (described in 2744 ff.)
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].