Set off on (something) verb phrase
To make something beginning or happenning, especially an acitivity, event or a series of events
What should I prepare before setting off on a journey across the world?
My teacher set me off on a project on the genetics of eating disorders.
The break-up of his marriage set him off on a journey to find someone he truly loves.
This picture set my father off on a historical narrative of the United States.
To start working on something seriously or determinedly; to start doing what needs to be done
It's time for something to start.
1. To anger someone
2. To cause someone begin talking about something at length
3. To cause something to explode
4. To cause something to occur or activate
5. To make something distinct or attractive
6. To reduce something, especially the cost of something
The verb "set" must be conjugated according to its tense.