Verb conjugation of "rejeter" in French

In total we have 55,500 potential words. I know that is crazy. But we sorted them by the amount they were asked for. Then the words that are really missing and towards the end just stupid spelling mistakes.
The system will collect information about the learning behavior and guide the user through a tailor-made process that is best suited for him. This technique is not entirely new but we are redesigning the whole concept of it.
In school, we now are learning the grammar part, more specifically, the participles and so on. I understand it at all, but the conjugations, boy they are tough. A lot of patience is needed.