Spelling Changes in the Present Tense

Introduction

For pronunciation reasons, there are several Spanish verbs that undergo a spelling change in certain present tense conjugations.

We'll look at five groups of these stem-changing verbs in this article.

Group 1: -ger and -gir Verbs

Rule: In the first person singular, the g changes to a j.

Subject -ger Conjugation -gir Conjugation
yo protejo finjo
proteges finges
él, ella, usted protege finge
nosotros protegemos fingimos
vosotros protegéis fingís
ellos, ellas, ustedes protegen fingen

Common -ger and -gir Verbs

Spanish English Spanish English
acoger to greet escoger to choose
afligir to afflict exigir to demand
coger to catch/grab fingir to pretend
corregir to correct infringir to infringe
dirigir to direct proteger to protect
emerger to emerge recoger to pick up
encoger to shrink restringir to restrain
resurgir to reappear sumergir to submerge
surgir to emerge urgir to urge

Group 2: -guir Verbs

Rule: In the first person singular, the -gu changes to a g

Subject -guir Conjugation
yo distingo
distingues
él, ella, usted distingue
nosotros distinguimos
vosotros distinguís
ellos, ellas, ustedes distinguen

Common -guir Verbs

Spanish English Spanish English
distinguir to distinguish perseguir to pursue, to go after
conseguir to come by, to get proseguir to proceed, to continue
erguir to build seguir to follow

Group 3: -uir Verbs

Rule: Between vowels, an unstressed i always changes to a y.

In these verbs, the first person singular, second person singular, and third person singular and plural forms are affected.

Subject -uir Conjugation
yo concluyo
concluyes
él, ella, usted concluye
nosotros concluimos
vosotros concluís
ellos, ellas, ustedes concluyen

Common -uir Verbs

Spanish English Spanish English
argüir to argue destruir to destroy
influir to influence intuir to intuit
obstruir to obstruct recluir to confine
reconstruir to reconstruct sustituir to substitute
atribuir to attribute diluir to dilute
constituir to constitute disminuir to diminish
construir to construct distribuir to distribute
contribuir to contribute huir to run away
destituir to dismiss incluir to include

Group 4: -cer and -cir Verbs

Rule One

If the letter that comes before -cer or -cir is a consonant, the c changes to a z in the first person singular.

Subject -cir Conjugation
yo frunzo
frunces
él, ella, usted frunce
nosotros fruncimos
vosotros fruncís
ellos, ellas, ustedes fruncen

Common Consonant + -cer and -cir Verbs

Spanish English Spanish English
convencer to convince fruncir to frown
ejercer to exert vencer to vanquish
esparcir to disperse zurcir to darn

Rule Two

If the letter that comes before -cer or -cir is a vowel, a z is added to the first person singular.

Subject -cer Conjugation
yo conozco
conoces
él, ella, usted conoce
nosotros conocemos
vosotros conocéis
ellos, ellas, ustedes conocen

Common Vowel + -cer and -cir Verbs

Spanish English Spanish English
aborrecer to detest deducir to deduce
producir to produce nacer to be born
agradecer to thank desaparecer to disappear
aparecer to appear desconocer to ignore
reaparecer to reappear reconocer to recognise
apetecer to feel an urge for establecer to establish
complacer to satisfy inducir to induce
reducir to reduce restablecer to restore
conducir to drive introducir to introduce
conocer to know, to meet merecer to deserve
rejuvenecer to rejuvenate traducir to translate
crecer to grow obedecer to obey

Group 5: -go Verbs

Exception to the -c to -zc rule

Hacer, decir, and satisfacer do not follow the c --> -zc rule. Instead, the c changes to a g in the first person singular

Subject Decir Conjugation Hacer Conjugation Satisfacer Conjugation
yo digo hago satisfago
dices haces satisfaces
él, ella, usted dice hace satisface
nosotros decimos hacemos satisfacemos
vosotros decís hacéis satisfacéis
yo dicen hacen satisfacen

Other verbs that add G to the first person in the present tense:

Infinitive Yo Form Infinitive Translation
asir asgo to seize
salir salgo to leave
oír oigo to hear
tener tengo to have
poner pongo to put
valer valgo to cost