Respuesta :
Answer:
Could is the past tense of can in most scenarios. I attached an image that provides further explanation.

Answer:
Even though, can and could are quite similar, there are slight differences. Could is the past tense of can. Could could be considered more polite compared to can. Additionally, can is used more as an offer, and could is used more as a suggestion!
Explanation:
Can you help me?
vs.
Could you help me?
I can help you.
vs.
I could help you.