This paper presents the conclusions resulted from an intona¬tional analysis of Romanian Yes-No questions. The recent anal ysis results consist in dividing and structuring the F0 curves into intonational units. Each intonational unit is described by a tone sequence using ToBI labels used in annotation of the most im portant phonetic events: pitch accents and boundary tones. The authors of the present study propose a description of the resulted patterns for F0 contour in terms of intonational units structures described by their tone sequence. We consider this description suitable for the variety of melodic contours resulted from dif ferent speakers and different focalizations in their utterances. In paragraph 3, the paper presents the intonational variants resulted from our speech corpus analysis. The conclusions of Yes-No ques tion analysis are important for lnguistic studies and in Romanian speech synthesis