Marking progressive aspect is one of the functions of the imperfective auxiliaries te/tə and tiŋ, Non-past and Past respectively. More often than not, habitual actions involve the operation of the imperfective auxiliaries.
In general, stative verbs do not admit imperfective marking. The most notable exception is that of fika, which, in a locative construction, means both 'to stay' and 'to dwell'; crucially, in its latter sense, fika can occur both with or without the imperfective auxiliary. As of yet, it is not clear whether instances of imperfective-marked fika 'to dwell' truly imply an expectation of temporariness.
Source: Cardoso 2004-2008
Source: Cardoso 2009: 186
Source: Cardoso 2004-2008
Source: Cardoso 2004-2008