Can & Could

Can = boleh
Can bertukar Could (diikuti dengan simple present tense)

Could

1.Mungkin
2.cadangan
3.diizinkan

Mungkin
I could pass in  this examination
You could do it tomorrow

Minta izin
Could i go there with you, please?
Could i speak to En.Mahmud, please

Cadangan
You could have it if you want it
If we could go there again, i would be happy