Definition:
'Seen' is a participle form of the word 'see.' The verb form of 'seen' indicates that someone has visually observed something or visited a place. It can also refer to being witnessed by someone. For example, you could say 'I have seen the Grand Canyon,' to describe visiting the area.
Examples:
1. She has seen many wonders of the world in her travels.
2. The students had seen the consequences of their actions.
3. My sister had seen a large volcano during her travels.
Tips:
When using the verb form of 'seen,' pay close attention to when the action occurred. Depending on the context, it could indicate a past, present, or future action.