extraer

to extractirregular-er verb

Where it breaks the pattern

extraer follows traer: irregular first-person form
extraer follows traer: irregular preterite stem; the 1s and 3s endings are unstressed, so they carry no written accent
extraer follows traer: present subjunctive is built from the irregular yo form
extraer follows traer: imperfect subjunctive is built from the third-person preterite stem
unstressed i → y between vowels

Indicativo: extraer conjugation

	Presente	Pretérito	Imperfecto	Futuro	Condicional
yo	extraigo	extraje	extraía	extraeré	extraería
tú	extraes	extrajiste	extraías	extraerás	extraerías
él / ella / Ud.	extrae	extrajo	extraía	extraerá	extraería
nosotros	extraemos	extrajimos	extraíamos	extraeremos	extraeríamos
vosotros	extraéis	extrajisteis	extraíais	extraeréis	extraeríais
ellos / Uds.	extraen	extrajeron	extraían	extraerán	extraerían

Participio: extraido · Gerundio: extrayendo

irregular form

Real sentences with the conjugated form highlighted, from Tatoeba, licensed under CC BY 2.0 FR.

El ADN se extrae de una muestra de sangre.
DNA is extracted from a blood sample.
El dentista le extrajo el diente roto.
The dentist took her broken tooth out.
Los doctores extrajeron la bala.
Doctors removed the bullet.

These verbs are traer with a prefix, and they inherit its irregular forms.