The events that occurred and ended in the past is an event that must be used with a verb in the form of the past. (Past) or we called Channel 2 verbs students need to learn and master situations can be made using English to communicate.
The incident ended in the past, is an event that must be used with verbs in the past (Past), also called the verb two students to learn and master the situation requires. To be able to use English to communicate.