Relative of Time (-po-/-lipo-) in Swahili

Overview

The temporal relative marker -po- (and its tense-inflected forms) specifies "when" within a relative construction. At the CEFR B2 level, this marker enables precise temporal clauses: "nilipofika" (when I arrived), "atakapokuja" (when he comes). Three locative-relative forms exist: -po- (definite time), -ko- (indefinite/wherever), and -mo- (within/during).

How It Works

Temporal Relative Forms

Tense	Form	Example	Meaning
Past	-lipo-	nilipofika	when I arrived
Present	-napo-	anaposoma	when he reads
Future	-takapo-	atakapokuja	when he comes (future)
Habitual	—	asomapo	whenever he reads

Three Locative-Relative Markers

Marker	Meaning	Example
-po-	Definite time/place	nilipofika (when I arrived)
-ko-	Indefinite/wherever	popote uendako (wherever you go)
-mo-	Inside/within	alimokuwa (where he was inside)

With "wakati" (when)

• Wakati nilipofika... (At the time when I arrived...)
• Wakati wowote unapohitaji... (Whenever you need...)

Examples in Context

Swahili	English	Note
Nilipofika, watu walikuwa wengi.	When I arrived, there were many people.	Past -po-
Atakapokuja, tutamwambia.	When he comes, we'll tell him.	Future -po-
Popote uendapo, nakutakia heri.	Wherever you go, I wish you well.	Indefinite -po-
Wakati wowote unapohitaji, niite.	Whenever you need, call me.	Open temporal
Ninapofika nyumbani, ninapumzika.	When I arrive home, I rest.	Present habitual
Tulipokuwa wadogo, tulicheza sana.	When we were young, we played a lot.	Past background
Mvua iliponyesha, tuliingia ndani.	When it rained, we went inside.	Cause-result
Atakapofika, tutaanza.	When he arrives, we will begin.	Future plan

Common Mistakes

Omitting -po- in temporal clauses

• Wrong: Nilifika, watu walikuwa wengi. (I arrived, people were many — no connection)
• Right: Nilipofika, watu walikuwa wengi. (When I arrived...)
• Why: -po- explicitly marks the temporal relationship between clauses.

Confusing -po- tense forms

• Wrong: Nilipokuja kesho (when I arrived tomorrow — tense conflict)
• Right: Nitakapokuja kesho (when I come tomorrow — future)
• Why: The tense marker before -po- must match the temporal meaning.

Usage Notes

The -po- temporal relative is one of the most elegant features of Swahili grammar, allowing precise temporal relationships to be encoded within a single verb form. It is characteristic of fluent, sophisticated Swahili.

Practice Tips

1. When-clauses: Rewrite five English "when" sentences using -po- relatives.
2. Tense variation: Take one event and express "when" in past, present, and future using -lipo-, -napo-, -takapo-.
3. Wherever/whenever: Practice indefinite forms with "popote" and "wakati wowote."

Related Concepts

• Prerequisite: Relative Clauses (-ye-/-o-/-cho- etc.) — -po- is a specialized relative marker