#64: She is always swimming in the sea
Use of "ai" as habitual action
Habitual action — ai
The particle ai can indicate habitual or regular action when it appears after the verb near the beginning of a sentence. It shows that something happens repeatedly or all the time, such as Kōrero ai tērā tāne (“That man is always talking”) or Hīkoi ai a Aroha ki te kura (“Aroha always walks to school”).