Irregular Spanish Verbs

PRINCIPAL VERBS, THE LAST ROOT VOWEL OF WHICH CHANGES INTO A DIPHTHONG
WHEN THE STRESS OF THE VOICE FALLS ON IT:

=Pensar= (to think).

_Pres. Ind._, Pienso, piensas, piensa,--,--, piensan.
_Pres. Subj._, Piense, pienses, piense,--,--, piensen.
_Imperative_, Piensa, piense,--,--, piensen.

=Entender= (to understand).

_Pres. Ind._, Entiendo, entiendes, entiende,--,--, entienden.
_Pres. Subj._, Entienda, entiendas, entienda,--,--, entiendan.
_Imperative_, Entiende, entienda,--,--, entiendan.

=Sentir= (to feel).

_Pres. Ind._, Siento, sientes, siente,--,--, sienten.
_Pres. Subj._, Sienta, sientas, sienta, sintamos,[217] sintáis,[217]
sientan.
_Imperative_, Siente, sienta, sintamos,[217]--, sientan.

=Acordar= (to agree).

_Pres. Ind._, Acuerdo, acuerdas, acuerda,--,--, acuerdan.
_Pres. Subj._, Acuerde, acuerdes, acuerde,--,--, acuerden.
_Imperative_, Acuerda, acuerde,--,--, acuerden.

=Mover= (to move).

_Pres. Ind._, Muevo, mueves, mueve,--,--, mueven.
_Pres. Subj._, Mueva, muevas, mueva,--,--, muevan.
_Imperative_, Mueve, mueva,--,--, muevan.

=Dormir= (to sleep).[216]

_Pres. Ind._, Duermo, duermes, duerme,--,--, duermen.
_Pres. Subj._, Duerma, duermas, duerma, durmamos,[217] durmáis,[217]
duerman.
_Imperative_, Duerme, duerma, durmamos,[217]--, duerman.

[Footnote 216: _Morir_ (to die) is the only verb conjugated like
_Dormir_; but past part. _Muerto_.]

[Footnote 217: Notice the additional irregularities.]

Principal Verbs conjugated like "Pensar"--

Acertar (to hit the mark)
Acrecentar (to increase)
Alentar (to encourage)
Apretar (to squeeze)
Arrendar (to lease, to hire)
Asentarse (to sit down)
Aterrar (to pull down)
Atravesar (to cross)

Calentar (to warm)
Cegar (to blind)
Cerrar (to shut, to close)
Comendar (to commend)
Comenzar (to begin)
Confesar (to confess)

Desmembrar (to dismember)
Despertar (to awake)

Empedrar (to pave)
Empezar (to begin)
Encerrar (to shut in)
Enmendar (to correct)

Gobernar (to govern)

Manifestar (to manifest)
Mentar (to mention)

Negar (to deny)

Plegar (to fold)

Quebrar (to break)

Recomendar (to recommend)
Reventar (to burst)

Temblar (to tremble)
Tentar (to tempt, to attempt)
Tropezar (to stumble)

Principal Verbs conjugated like "Entender"--

Ascender (to go up)
Atender (to attend)

Condescender (to condescend)
Contender (to contend)

Defender (to defend)
Descender (to descend)

Encender (to light)
Extender (to extend)

Perder (to lose)

Tender (to stretch)

Verter (to shed, to spill)

Principal Verbs conjugated like "Sentir"--

Adherir[218] (to adhere)
Adquirir[218] (to acquire)
Advertir[218] (to notice, to warn)
Arrepentirse (to repent)
Asentir (to assent)

Consentir (to consent)

Erguir (to erect, to raise)

Hervir (to boil)

Mentir (to lie)

[Footnote 218: And all in _erir, irir, ertir_.]

Principal Verbs conjugated like "Acordar"--

Acostarse (to go to bed)
Almorzar (to breakfast)
Apostar (to bet)
Aprobar (to approve)
Avergonzarse (to be ashamed)

Colgar (to hang)
Consolar (to comfort)
Contar (to relate)
Costar (to cost)

Encontrar (to meet)

Forzar (to force)

Hollar (to tread)

Mostrar (to show)

Poblar (to people)
Probar (to prove)

Recordar (to remind, to remember)
Renovar (to renew)
Rodar (to roll)
Rogar (to pray)

Soldar (to solder)
Soltar (to loosen)
Sonar (to sound)
Soñar (to dream)

Tostar (to toast)
Trocar (to exchange, to barter)

Volar (to fly)

Principal Verbs conjugated like "Mover"--

Absolver (_And all in _olver_) (to absolve)

Cocer (to bake, to cook)

Demoler (to demolish)
Doler (to ache)

Moler (to grind)
Morder (to bite)

Oler (to smell)[219]

[Footnote 219: _Huelo_, etc., (because no words begin with _ue_).]

Promover (to promote)

Soler (to be accustomed)

Torcer (to twist)

LIST OF PRINCIPAL VERBS CONJUGATED LIKE "PEDIR"--

Ceñir (And all in _eñir_) (to gird)
Competir (to compete)
Concebir (to conceive)
Corregir (to correct)

Derretir (to melt)

Elegir (to elect, to select)
Embestir (to run down, to assail)

Freir (to fry)

Gemir (to moan)

Impedir (to prevent)

Medir (to measure)

Regir (to rule, to govern)
Reir (to laugh)
Repetir (to repeat)

Seguir (to follow)
Servir (to serve)

Vestir (to dress, to clothe)

END