The support systems for conceptual modeling of today lack natural language feedback. The paper argues for the need of natural language discourse for the validation of a conceptual model. Based on this conclusion a suggestion is made on a natural language discourse generation system as a validation tool and also as a support tool in simulating a conceptual model. Various appropriate natural language discourses are then proposed in the paper. To conclude the paper a support system based on the natural language generation techniques of today and on previous working systems constructed by the author is suggested.