1. Irregular Preterite Verbs: Ir, Ser

2. Preterite of IR
You know that we use fui and fuiste to say that “I went”and “you went.”
They are preterite-tense (past) forms of IR.

3. Preterite of IR Unlike -AR verbs, forms of IR have no accents.
This is an irregular verb and its forms must be memorized.

4. TO GO (past)
I went
You went He
She went it
We went
They went

5. IR (preterite) Yo fui Tú fuiste Él Ella fue Ud. Nos. fuimos
Vos. fuisteis
Ellos
Ellas fueron
Uds.

6. Preterite of SER
The preterite of IR is the same as the preterite of SER.
The context makes the meaning clear.

7. Preterite of SER José fue a Barcelona. El viaje fue un desastre.
Jose went to Barcelona.
El viaje fue un desastre.
The trip was a disaster.

8. Preterite of IR/SER
Here’s a memory tip to help you remember the subjects of fui and fue:

9. Preterite of IR/SER The “I” form ends in -i (fui).
The “he” and “she” form ends in -e (fue).