Sentence:  In a long commentary which he has inserted in the published text of the first act of the play , he says at one point : `` However , that experience <WSD>never</WSD> raised a doubt in his mind as to the reality of the underworld or the existence of Lucifer 's many faced lieutenants . 
Meaning of the word marked with <WSD> tags:  not ever; at no time in the past or future