Simple:
* I discovered a new coffee shop on my walk today.
* The scientist discovered a cure for the disease.
Complex:
* The archaeologist discovered ancient artifacts buried beneath the temple ruins.
* After years of research, the team discovered the cause of the mysterious illness.
Figurative:
* The artist discovered her true voice through painting.
* I discovered a love for hiking in the mountains.
With different tenses:
* I discovered the secret yesterday. (Past tense)
* I am discovering new things every day. (Present continuous tense)
* I will discover the truth one day. (Future tense)
Remember: The meaning of "discover" is to find something that was previously unknown. So, make sure the sentence reflects that!