These can both be used in the same way. These both can be used in the same way. Like these sentences, can is flexible. There is one time that you must use can first. It is in a question. Can only one sock be put on at a time? Correct; You can only put one sock on at a time. - or - You only can put them on one at a time.

i think they're both correct and used in the same ways but "can only" seems alot more natural than "only can". i can only make pancakes = i only can make pancakes. this is a pretty tough question.. im not 100% sure actually. saying "only can" is a bit awkward imo