What grammatical aspect is most commonly expressed through preverbal particles in pidgin languages?

Tense, aspect, and modality (TAM) are most commonly expressed through preverbal particles in pidgin languages. Since pidgins often lack complex verb conjugations found in many established languages, they rely on preverbal particles—small words placed before the verb—to indicate when an action takes place (tense), how the action unfolds or its completeness (aspect), and the speaker's attitude toward the action or its possibility (modality). For example, in Tok Pisin, the particle 'bai' is placed before the verb to indicate future tense, as in 'Mi bai go' ('I will go'). These particles provide crucial grammatical information that would otherwise be absent due to the simplified morphology of pidgins.