According to their age, children tend not to reformulate the same story in the same matter previously heard even though the overall content is similar. Reformulation processes used by these children from the age 5 to 11 reveal at what acquisition stage each and every one of them is. Spatial and temporal expressions respectively result in very different achievements. Concerning spatial reference, entity location seems to be acquired by the age of 9 and directional expression by the age of 11. In the temporal area, children aren't able to evaluate an event frequency before the age of 8. The slow spatial and temporal development is mainly due to the misknowledge of the different prepositional values. Moreover, reformulation analysis shows that children reformulate most of the verbal predicates while defining them. This way of sense build up shows that definition types depend on both verbal lexicon and children age.