COM: Gramática Lesson - Presente Subjuntivo, Part 2

Presente Subjuntivo, Part 2

Stem Changes in the Present Subjunctive

Watch this grammar video lesson. Pause the video when needed and take as many notes as you would like!    

Here are the conjugation rules explained in the video above. Read over these rules and create flash cards if you wish. In the next section you will review these grammar rules and then, practice what you learned with the online activities.

Rule #1: -ar and -er verbs

  • e → ie
  • o → ue

For verbs in this group, the -e in the last syllable of the stem (the yo form of the present indicative) changes to -ie, or the -o in the last syllable of the stem (the yo form of the present indicative) changes to -ue. All subjunctive forms follow the stem change except for nosotros and vosotros, which use the infinitive stem.

Example verb: querer

  • Subjunctive stem: quer → quier-
  • Subjunctive stem for nosotros and vosotros forms: querer - er = quer-
Present Subjunctive - querer
Singular Plural
quiera
quieras
quiera
queramos
queráis
quieran

Rule #2: -ir verbs

  • e → ie
  • o → ue

All e → ie  and o → ue  stem-changing -ir verbs follow the same changes as in the present indicative, except the nosotros and vosotros, forms, in which the e changes to i and the o changes to u.

Example verb: sentir

  • Subjunctive stem: sent → sient-
  • Subjunctive stem for nosotros and vosotros forms: sent → sint-
Present Subjunctive - sentir
Singular Plural
sienta
sientas
sienta
sintamos
sintáis
sientan

Example verb: dormir

  • Subjunctive stem: dorm → duerm-
  • Subjunctive stem for nosotros and vosotros forms: dorm → durm-
Present Subjunctive - dormir
Singular Plural
duerma
duermas
duerma
durmamos
durmáis
duerman

Rule #3: -ir verbs

  • e → i

All e → i  stem-changing -ir verbs in the present indicative maintain the stem change in all forms of the present subjunctive.

Example verb: pedir

  • Subjunctive stem: ped → pid-
Present Subjunctive - pedir
Singular Plural
pida
pidas
pida
pidamos
pidáis
pidan

Spelling Changes

Some verbs in the present subjunctive undergo spelling changes. This often occurs for reasons of pronunciation, and these changes often match those of verbs with spelling changes in the preterit. Let's take a look at some of these verbs.

-ger and -gir Verbs

Verbs ending in -ger and -gir have a j instead of a g in the subjunctive. The base form for these verbs is the first person form of the present tense, which undergoes a spelling change.

Present Subjunctive - escoger
Singular Plural
escoja
escojas
escoja
escojamos
escojáis
escojan

-car, -gar and -zar Verbs

Verbs ending in -car, -gar, and -zar undergo a change in the final consonant before -ar. These consonants change to:

  • c → qu
  • g → gu
  • z → c

Some of these verbs, such as empezar, also undergo stem changes.

Example verb: sacar

  • Subjunctive stem: sac → saqu-
Present Subjunctive - sacar
Singular Plural
saque
saques
saque
saquemos
saquéis
saquen

Example verb: llegar

  • Subjunctive stem: lleg → llegu-
Present Subjunctive - llegar
Singular Plural
llegue
llegues
llegue
lleguemos
lleguéis
lleguen

Example verb: empezar

  • Subjunctive stem: empez → empiec-/empec- (nosostros/vosotros)
Present Subjunctive - empezar
Singular Plural
empiece
empieces
empiece
empecemos
empecéis
empiecen

Video Presentation

Here is a short but important video lesson to wrap up the uses of subjunctive verbs. Be prepared to pause and take notes.  

Practice Activity

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