Thanks ks. But I'm afraid I'm even more confused now. Does that mean אפשר denotes physical capability only/mostly/generally? If this is the case I'm wondering why would יכל not be used? I'm also wondering if ניתן really means "Here is ..." or does it really mean "Possible ..."?ניתן is more formal and less about physical capability (sort of like the difference between "may" and "can").