When do you use the subjunctive?
How do you form regular verbs (the present subjunctive)?
Take the yo form of the present tense of the verb and replace the -o with the following endings
AR - e, es, e, emos, éis, en
ER, IR - a, as, a, amos, áis, an
E.g. hablo = hable
How do you form irregular verbs (the present subjunctive)?
Yo form of the present tense e.g. tengo
dar (1st person present doy) dé, des, dé, demos, deis, den
Estar (estoy) - esté, estés, esté, estemos, estéis, estén
Haber(he) - haya, hayas, haya, hayamos, hayáis, hayan
ir (voy) - vaya, vayas, vaya, vayamos, vayáis, vayan
saber (sé) - sepa, sepas, sepa, sepamos, sepáis, sepan
ser (soy) - sea, seas, sea, seamos, seáis, sean
What is the usage of the imperfect subjunctive?
The same as the prefect subjunctive but in past tense sentences
Era imposible que hablaras con él - it was impossible for you to talk to him
Le dije que no bebiera más - I told him not to drink any more
Quieran que Antonio se fuera - They wanted Antonio to go away
Te escribí para que supieras lo que pasaba - I wrote so that you would know what was going on
Era necesario que saliéramos a trabajar - it was necessary for us to go out to work
Ella buscaba un hombre que tuviera mucho dinero - she was looking for a man who had lots of money
2. Also need to use imperfect subjunctive in Si… conditional sentences that express doubt
Si fuera rico, iría a España - if I were rich, I would go to Spain
Si me casara con ella, me volvería loco - if I married her I would go crazy
How to form the imperfect subjunctive?
Two forms, one ending in -ra and one ending in -se. Completely interchangeable but the -ra form is more common.
Stem is always taken from the third person plural (ellos) of the pretérito ‘They’ form take of RON
hablar (hablaron) habla- ra, ras, ra, áramos, rais, ran (se, ses, se, ásemos, seis, sen)
beber (bebieron) bebie- ra, ras, ram éramos, rais, ran (same)
vivir (vivieron) vivie- (same as ER) (same)
How do you from irregular verbs in the imperfect subjunctive?
Stem is always taken from third person plural of the pretérito
Tener (tuvieron) tuvi-era, eras, era, éramos, erais, eran
Poder (pudieron) pudi- (same)
decir (dijieron) dij- (same)
How do you use and form the perfect and pluperfect subjunctive?
When you need the perfect and imperfect tenses in the grammatical contexts of the subjunctive you use subjunctive instead of indicative
Perfect subjunctive formed:
The present subjunctive of the auxiliary verb haber + the past participle
Es probable que haya salido
It is likely that he has gone out
Pluperfect forming:
The imperfect subjunctive of the auxiliary verb haber + the past participle
Era probable que hubiese salido
It was probable that she had gone out
Usage of imperatives?
Used to give instructions and commands
E.g. Escúchame - listen to me
No arrojes basura - Don’t drop litter
Either informal - tu, vosotros forms) of formal (usted, ustedes form)
Formation of positive and negative imperatives?
positive imperatives: informal positive imperatives; for tú use the normal tú form of the present tense without the final -s, for vosotros replace the final -r of the infinitive with -d
E.g. limitar - tú, limita and vosotros limitad
Proteger - tú, protege and vosotros proteged
vivir - tú, vive and vosotros vivid
There are a few irregulars tú positive imperatives
decir - di
hacer - haz
ir - ve
poner - pon
salir - sal
ser - sé
tener - ten
venir - ven
For usted and ustedes use the third person of the present subjunctive
limitar usted, limite and ustedes limiten
proteger usted proteja and ustedes protejan
vivir usted viva and ustedes vivan
Formation of negative imperatives
for all use the appropriate negative word plus the present subjunctive
limitar tú no limites, vosotros no limitéis, usted no limite, ustedes no limiten
proteger tú no protejas, vosotros no protejáis, usted no proteja, ustedes no protejan
vivir tú no vivas, no viváis, no viva, no vivan