Interested in Language
Please explain if it is correct to say "I don't know how to sing" meaning that a person has neither vocal abilities nor does he know singing techniques.
Is it equivalent to "I can't sing"?
What's the best way to express the meaning?
I find "I don't know how to sing" rather unnatural. Everyone knows how. Whether what comes out of their mouth when they do is in tune, in time or even possible to listen to, is another thing entirely.
If someone says "I can't sing", we know they mean "I can't sing in tune". It's not about the ability of their vocal cords to actually carry out the functions necessary to sing.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.