Re: 到 得 就

These are common particles, depend on context, they can mean many different things. For example:
 [v+得]
行(walk)得(can)
著好衫就行得 ( once I am dressed, we can go)
我仲行得 (I can still walk)

行得通 ( can validly implement )
行唔通 ( cannot validly implement)
* 得 is potential particle here,

行得辛苦 ( walk painfully)* 得 connect 辛苦 to 行 as an adverb
行得快 (walk fast) *得 connect 快 to 行 as an adverb

C. Chiu can explain more in details.