"I must be able to."

Translation: Saya harus bisa.

[juxEgS5c]

What is the difference between bisa and dapat?

[anyisa]

bisa is less formal than dapat

[anyisa]

while in this case, dapat means get/receive

[nicole970955]

Why is saya harus dapat not accepted?

[WayangOrang]

Saya harus dapat ...
means something like : "I must receive/get ..."

Dear Nicole, I think this Indonesian sentence is not complete.
Something has to come after 'dapat'.