Two word verbs with adverb I was just working on a Chinese review app and came across the sentence:

他游泳游得很快。

And I was wondering if the doubling of the first character is unique to certain kinds of verbs or all 2 character verbs.

Or can I also say 他游泳得很快。?
This is mostly just for clarity rather than anything else.

他游泳得很快 is not okay but 他游得很快 is okay. Without any context though who could understand a random 他游得很快? No one, really. Hence we get our doubling up: 他游泳游得很快。