Datapoint Cape Verdean Creole of Santiago/Tightness of the link between the progressive marker and the verb

Progressive (marker: sa) is distinct from imperfective (marker: ta). However, progressivity logically implying imperfectivity, the progressive marker is invariably followed by the marker of imperfectivity (ta). Nothing else (beside ta) can intervene between the progressive marker and the verb.

Values

Particle, only grammatical markers can intervene

Example 30-101:

Kelotu dia, kántu maridu sa ta benba di trabádju y k ’e sa ta pasába na un txáda, e átxa un kabésa riba-l pédra.
Kel-otu
dem.sg-other
dia
day
kántu
when
maridu
husband
sa=ta=ben-ba
prog=ipfv=come-ant
di=trabádju
from=work
y
and
k=e=sa=ta=pasá-ba
comp=3sg=prog=ipfv=cross-ant
na=un=txáda,
in=a=plain
e=átxa
3sg=find
un=kabésa
a=head
riba=l
on.top=of
pédra.
stone
The other day, when the husband was walking home from work and crossing a plain, he found a head lying on a stone.
German: Als der Ehemann am Tag darauf von der Arbeit kam und eine Ebene überquerte, fand er einen Kopf auf einem Stein.

Source: da Silva 1987: 27

Confidence:
Certain