Palabras con Significados Diversos Entre Pretérito y Imperfecto

	Pretérito	Imperfecto
Conocer	to meet	to know to be acquainted with
Saber	to find out	to know facts
Poder	to be able to try and succeed	to be able to no knowledge of success
No Poder	to try but fail	to be incapable of
Querer	to try but fail	to want
No Querer	to refuse	not to want
Tener	to recieve	to have
tener que	to have to, and do	to have the obligation to
costar	to cost, be bought for	to cost, be available for

El Pluscuamperfecto de Subjuntivo

The Pluperfect Subjunctive is formed by combining the Imperfect Subjunctive of Haber with a Past Participle.

Imperfect Subjunctive of Haber
hubiera
hubieras
hubiera
hubiéramos
huierais
hubieran

Usos de Las Preposiciones A, De y En

A

A means to, at or in and denotes movement toward a place or a moment in time.
• indicate time of day
A las nueve yo miro TV.
• used with infinitive verbs when they follow verbs of motion.
venimos a pescar
• used with infinitive verbs when they follow aprender, comenzar, empezar and enseñar.
• always after the verb llegar
• personal A, it is used before a direct object noun that refers to a specific person or to an animal or thing you treat like a human.

De

De means of, from, about, with and in. It is used to refer to possession material and origin.
• Used to refer to a period of time like morning or afternoon.
de la mañana
• Used after a superlative to mean in or of.
más...de
• Physical Characteristics
• Can be used in place of sobre or acerca de to mean about.

En

En can mean at, in, on, inside and over. It places a person or thing within an area of time or space.
• Refers to a definite place.
Esta en mi casa.
• Can be used in place of sobre to mean on.
• Indicates means of transportation.

El Imperfecto

The Imperfect Tense is used to refer to habitual actions in the past without refering to when they began or ended. The Imperfect can also be used with actions in the past that were in progress.

Regular Imperfect Verbs Endings

	-ar	-er/-ir
Yo	aba	ía
Tú	abas	ías
Él, Ella, Ud.	aba	ía
Nosotros	ábamos	íamos
Vosotros	abais	íais
Ellos, Ellas, Uds.	aban	ían

Irregular Imperfect Verbs

	ser	ver	ir
Yo	era	veía	iba
Tú	eras	veías	ibas
Él, Ella, Ud.	era	veía	iba
Nosotros	éramos	veíamos	íbamos
Vosotros	erais	veíais	ibais
Ellos, Ellas, Uds.	eran	veían	iban

Pretérito

m
The Preterit tense expresses actions that were completed in the past.

Regular Preterit Verb Endings

-ar -er/-ir
é í
aste iste
ó ió
amos imos
asteis isteis
aron ieron

Preterit Verbs with Stem or Ending changes

Some -ar verbs change their endings in first person singular.
-gar = -gué
-car = -qué
-zar = -cé

Some -er and -ir verbs whose stems end in a vowel change i to y in third person singular and plural.

leer
leí
leiste
leyo
leimos
leisteis
leyeron

Verbs that end in -ir and stem change in the present tense change e to i and o to u in the third person

Dormir
dormí
dormiste
durmió
dormimos
dormisteis
durmieron

Irregular Preterit Verbs

ser/ir dar tener estar poder poner saber
fui di tuve estuve pude puse supe
fuiste diste tuviste estuviste pudiste pusiste supiste
fue dio tuvo estuvo pudo puso supo
fuimos dimos tuvimos estuvimos pudimos pusimos supimos
fuisteis disteis tuvisteis estuvisteis pudisteis pusisteis supisteis
fueron dieron tuvieron estuvieron pudieron pusieron supieron

El Modo Subjuntivo

You form the Subjuntivo with the first person singluar stem plus these endings.

-ar verbs -er verbs -ir verbs
-e -a -a
-es -as -as
-e -a -a
-emos -amos -amos
-éis -áis -áis
-en -an -an

Irregular Subjuntivo Verbs
dar estar saber ser ir
dé esté sepa sea vaya
des estés sepas seas vayas
dé esté sepa sea vaya
demos estemos sepamos seamos vayamos
deis estéis sepáis seáis vayáis
den estén sepan sean vayan

Stem changing Subjuntivo Verbs
-ar and -er verbs have the same changes in Subjuntivo that they have in indicitivo.
Volver
vuelva
vuelvas
vuelva
vuelvamos
vuelváis
vuelvan

For -ir verbs the e:ie change e to i and o:ue change o to u in the first and second person plural.
Podir
pueda
puedas
pueda
pudamos
pudáis
puedan

El Condicional

The conditional tense is formed by combining the infinitive of the verb with a conditional ending. The conditional tells you what would have happend or what should have happened. It is the past's future.

Regular Conditional Verb Engings

-ar, -er and -ir
-ía
-ías
-ía
-íamos
-íais
-ían

Irregular Conditional Verbs
Some verbs change their stem when used in the conditional tense.

decir = dir-
hacer = har-
querer = querr-
saber = sabr-
poder = podr-
venir = vendr-
caber = cabr-
poner = pondr-
tener = tendr-
salir = saldr-
valer = valdr-

Hola

 Yo estoy trabajando en mi español.