Datapoint Singlish/Tightness of the link between the past marker and the verb

(i) The past tense marker -ed is often not realized.
(ii) Lastime is a time adverbial that is also used as a past tense marker.

Values

Affix

Example 21-63:
Then they quarrelled.
Then
then
they
3pl
quarrell-ed.
quarrel-pst
Then they quarrelled.

Source: Fong 2004: 77

Confidence:
Very certain