Bod - Past Tense (Preterite) in Welsh

Overview

The preterite (or simple past) of "bod" has forms beginning with "bu-": bues i, buest ti, buodd e/hi, buon ni, buoch chi, buon nhw. At the A2 level, these forms are used to express "I was (somewhere/doing something) for a specific period" — as opposed to the imperfect "roeddwn i" which describes ongoing states or habitual actions.

The preterite of "bod" is less commonly used than the imperfect in everyday conversation, but it is important for talking about completed stays, visits, or periods of time: "I was in Spain for a week" (Bues i yn Sbaen am wythnos).

How It Works

Preterite Forms of Bod

Person	Affirmative	Negative	Question
I	Bues i	Fues i ddim	Fues i...?
You (sg)	Buest ti	Fuest ti ddim	Fuest ti...?
He/She	Buodd e/hi	Fuodd e/hi ddim	Fuodd e/hi...?
We	Buon ni	Fuon ni ddim	Fuon ni...?
You (pl)	Buoch chi	Fuoch chi ddim	Fuoch chi...?
They	Buon nhw	Fuon nhw ddim	Fuon nhw...?

When to Use Preterite vs Imperfect

Preterite (bu-)	Imperfect (roedd-)
Bues i yn Sbaen am wythnos. (I was in Spain for a week — completed)	Roeddwn i'n byw yn Sbaen. (I was living in Spain — ongoing)
Buodd hi'n sâl am fis. (She was ill for a month — recovered)	Roedd hi'n sâl. (She was ill — state at that time)

Examples in Context

Welsh	English	Note
Bues i yn Sbaen am wythnos.	I was in Spain for a week.	Completed visit
Buodd hi'n sâl am fis.	She was ill for a month.	Completed period
Buon ni yno am dridiau.	We were there for three days.	Duration
Fuest ti erioed yn Ffrainc?	Have you ever been to France?	Question
Fues i ddim yn y gwaith ddoe.	I wasn't at work yesterday.	Negative
Buoch chi'n lwcus.	You were lucky.	Completed experience
Buodd y tywydd yn braf.	The weather was fine (for the period).	Weather
Fuon nhw ddim yno'n hir.	They weren't there long.	Negative
Bues i'n gweithio yno am bum mlynedd.	I worked there for five years.	Duration
Fuodd e'n dda?	Was it good?	Question

Common Mistakes

Confusing preterite with imperfect

• Wrong: Roeddwn i yn Sbaen am wythnos. (when meaning a completed visit)
• Right: Bues i yn Sbaen am wythnos.
• Why: The preterite emphasizes the completed, bounded nature of the experience.

Not using soft mutation in questions/negatives

• Wrong: Bues i ddim...
• Right: Fues i ddim...
• Why: Negative and question forms use the soft-mutated "Fu-" forms, not the affirmative "Bu-."

Over-using the preterite

• Wrong: Using "bues i" for all past statements about being somewhere
• Right: Use "roeddwn i" for descriptions and ongoing states, "bues i" for bounded periods
• Why: The distinction matters: "Roeddwn i'n hapus" (I was happy, describing state) vs "Bues i'n hapus" (I was happy, for a period).

Usage Notes

The preterite of "bod" is more common in Southern Welsh. In Northern Welsh, speakers often use "roeddwn i" for both functions or use alternative constructions. However, the "bu-" forms are understood everywhere and are important for formal and written Welsh.

The question form "Fuest ti erioed yn...?" (Have you ever been to...?) is a very common conversational pattern worth memorizing.

Practice Tips

1. Talk about trips: Describe past holidays using the preterite: "Bues i yn..." with duration.

2. Contrast with imperfect: Take the same scenario and express it with both tenses to feel the difference.

3. Practice "erioed" questions: Ask "Fuest ti erioed yn...?" about different places.

Related Concepts

• Bod - Present Tense