This is the 2695th most frequent Dutch word.
mo
"Mo" in Dutch is an informal abbreviation of "moeder," meaning "mom" or "mother."
Here, 'mo' is a shortened colloquial form of 'moet', which expresses obligation in Dutch.
Ik mo nooit zo vroeg opstaan, maar vandaag moest ik wel.
I never have to get up so early, but today I had to.
In this instance, 'mo' again serves as a colloquial form of 'moet', showing necessity.
Soms mo ik gewoon een pauze nemen om te ontspannen.
Sometimes I just have to take a break to relax.
The usage of 'mo' here illustrates its function as indicating obligation or a regular requirement.