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Consonant Spelling Changes in Verbs

What are Consonant Spelling Changes in Verbs?
  • Several consonant sounds (and one combination of consonant + w sound ) that occur at the end of verb stems vary in their spelling, depending on what follows.
  • The spelling changes are used to keep the pronunciation of the consonant sound consistent: for example, the k sound of saco [sako] is maintained by spelling it qu in saque [sake]. Spelling it sace would cause it to be pronounced [sase].
  • Unlike stem-changes, then, spelling changes are seen but not heard.
  • These spellings are almost completely predictable and consistent, and conform with the general rules of Spanish spelling.
  • The spelling of each varies according to which vowel sound immediately follows (the first sound of the verb ending).
  • The various sound changes are all grouped the same way: each sound is spelled one way before a or o, another way before e or i.
  • See table below for examples.
THE FIVE STEM-FINAL CONSONANT SOUNDS AND THEIR SPELLINGS
Consonant Sound
Spelling before a, o
Spelling before e, i
Examples
"hard" g
g
gu1
llegar, llego; llegue
distingo, distinga; distingue, distinguir
gw
gu
averiguar, averiguo; averie
argua; are, arir
jota2
j
g
recoja, recojo; recoge, recogí
k
c
qu1
buscar, busco; busque
s3 / th4
z
c
abrazar, abrazo; abrace
convence; convencí
  1. u is silent in these spellings
  2. if consonant sound is spelled with j in infinitive, no spelling changes occur: 
    • trabajar→trabaje; tejer→tejo, teja
  3. when consonant is spelled s, no changes occur:  coser, cosa, coso, cosí
  4. pronounced this way in most parts of Spain, as s in Latin America