Past Tense (-li-) in Swahili

Overview

The past tense marker -li- is the primary way to express completed actions in Swahili. At the CEFR A2 level, mastering this tense allows learners to narrate events, share experiences, and discuss history. Combined with the present tense -na- learned at A1, the past tense dramatically expands communicative range.

The construction follows the same agglutinative pattern as the present tense: subject prefix + tense marker + verb root. The -li- marker replaces -na-: ninasoma (I am reading) becomes nilisoma (I read/was reading). The negative past uses a different marker entirely: -ku- with the ha- prefix system.

The past tense -li- is used for all completed actions regardless of how recently they occurred. Unlike English, which distinguishes "I read" from "I was reading" and "I have read," Swahili uses -li- as a general past marker, with -me- (perfect) handling the "have done" nuance separately.

How It Works

Affirmative Past Tense

Subject	Prefix + li + soma	Meaning
mimi	nilisoma	I read/studied
wewe	ulisoma	you read
yeye	alisoma	he/she read
sisi	tulisoma	we read
ninyi	mlisoma	you all read
wao	walisoma	they read

Negative Past Tense

The negative past uses ha- prefix + modified subject prefix + -ku- + verb root (final -a retained):

Subject	Negative Past	Meaning
mimi	sikusoma	I did not read
wewe	hukusoma	you did not read
yeye	hakusoma	he/she did not read
sisi	hatukusoma	we did not read
ninyi	hamkusoma	you all did not read
wao	hawakusoma	they did not read

Monosyllabic Verbs in Past Tense

Monosyllabic roots keep ku-: nilikula (I ate), alikuja (he/she came).

Examples in Context

Swahili	English	Note
Nilisoma kitabu jana.	I read a book yesterday.	With time expression
Alikwenda sokoni.	He/She went to the market.	-enda → -kwenda
Tulifurahi sana.	We were very happy.	Emotion in past
Sikumwona.	I did not see him/her.	Negative + object infix
Walikuja mapema.	They came early.	3rd person plural
Ulifanya nini jana?	What did you do yesterday?	Question form
Mlisikia habari?	Did you all hear the news?	2nd person plural
Hatukuelewa.	We did not understand.	Negative past
Alifundisha kwa miaka mingi.	He/She taught for many years.	Duration
Mvua ilinyesha usiku.	It rained at night.	Non-human subject (class 9)

Common Mistakes

Using present negative forms for past

• Wrong: Sisoma kitabu jana. (I don't read book yesterday)
• Right: Sikusoma kitabu jana. (I did not read a book yesterday.)
• Why: Past negative uses -ku- marker, not the present negative pattern.

Confusing -li- with -me- (perfect)

• Wrong: Nimesoma kitabu jana. (I have read a book yesterday)
• Right: Nilisoma kitabu jana.
• Why: With a specific past time reference (jana), use -li-. The perfect -me- implies current relevance without specifying when.

Wrong negative past prefix for 2nd person

• Wrong: Ukusoma (you did not read — missing ha-)
• Right: Hukusoma
• Why: The 2nd person singular negative past is hu-ku-, not u-ku-.

Forgetting ku- in negative with monosyllabic verbs

• Wrong: Sikula. (I did not eat — ambiguous)
• Right: Sikula is actually correct for -la; the -ku- merges with the ku- of monosyllabic roots.
• Why: With monosyllabic roots, the negative -ku- and infinitive ku- overlap, so "siku-la" → "sikula."

Usage Notes

The -li- tense is the main narrative tense in Swahili storytelling. Folk tales typically begin with "Hapo zamani za kale..." (Once upon a time...) and continue predominantly in the -li- tense. It is also the tense used in news reporting for completed events.

In casual speech, some speakers use -me- (perfect) where -li- (past) would be more precise, especially in Kenya. Standard grammar maintains the distinction.

Practice Tips

1. Daily diary: Each evening, write three sentences about what you did today using -li- tense.
2. Tense contrast: Take five sentences in present -na- and convert them to past -li- and negative past -ku-, creating triplets to compare the forms.
3. Story retelling: Take a simple story and retell it in the past tense, practicing the narrative use of -li-.

Related Concepts

• Prerequisite: Present Tense (-na-) — the present tense pattern is the foundation that the past tense builds on
• Next steps: Relative Clauses (-ye-/-o-/-cho- etc.) — combine past tense with relative markers for complex sentences
• Next steps: Conditional (-nge-/-ngali-) — hypothetical past constructions
• Next steps: Passive Voice (-w-/-liw-/-ew-) — past tense passive constructions
• Next steps: Consecutive/Narrative Tense (-ka-) — chain past events in narratives