Mood marker lo usually precedes pronominal subjects, in particular when the subject is a singular pronoun. Lexical subjects and strong pronoun subjects (which behave like lexical subjects) precede lo (see Feature 62 "Expression of pronominal subjects").
Kouwenberg & Lefebvre (2007) argue that its distribution indicates that lo appears outside the "normal" TAM domain, in the left periphery of the clause, heading FinP (Finiteness Phrase).
Other tense/aspect markers immediately precede the verb. These are the past/anterior nonperfective marker tabata (tawata in the Aruban variety), the perfective aspect marker a, and the tense marker ta (which Kouwenberg & Lefebvre analyze as a dummy tense marker. distinct from gerundial ta, which is restricted to gerundial clauses; see Feature 47 "Uses of the progressive marker").
The overall surface order of TAM elements, then, is:
[lexical subject] MOOD [weak pronoun subject] NEG TNS/ASP VERB.
A lexical subject and clitic/weak pronoun subject do not cooccur.
The Mood marker lo cooccurs with any of the tense/aspect markers.
Source: Kouwenberg nd
Source: Kouwenberg nd
Source: Pinto 1965: 15
Source: Goilo 1953: 97
Source: Goilo 1953: 97
Source: Maurer 1988: 52