General
O-> UE
E -> IE
E -> I
Irregular yo
100

What is the stem of the verb?

Everything thing before the AR/ER/IR ending

100

Conjugate: Poder (you - informal)

Puedes

100

Conjugate: Pensar (I)

Pienso

100

Conjugate: Repetir (we)

Repetimos

100

What is the only U -> UE stem changing verb

Jugar

200

If the stem of the verb has two "e"s, which "e" gets the stem change?

The second

200

Conjugate: Almorzar (they)

Almuerzan

200

Conjugate: Cerrar (he)

Cierra

200
Conjugate: Medir (you, formal)

Usted mide

200
Conjugate: I have

Tengo

300

When in a conjugation chart, what do the verbs that have the stem change look like?

SHOE or BOOT

300

Conjugate: Encontrar (we)

Encontramos

300

Conjugate: Querer (vosotros)

Quereis

300

Conjugate: Competir (You all, formal)

Ustedes compiten

300

Translate: I tell jokes.

Yo digo chistes.

400

What TWO subject pronouns do NOT have a stem change applied to them when conjugated?

Nosotros and Vosotros

400

Translate: She counts the money.

Ella cuenta el dinero.

400
Translate: We prefer the cheese pizza.

Preferimos la pizza queso.

400

Translate: They elect the president.

Ellos eligen el presidente.

400

I come to the market (mercado) a lot.

Yo vengo al mercado mucho.
500

Of all the stem changing verbs, which type of stem changing verb is the most common? Which is the least common? 

What is one way to pretty accurately tell the difference between if it is going to be an "e -> ie" or "e -> i" stem changer?

Most common: o -> ue 

Least common: e -> i

One way to tell is that most ALL e -> i stem changing verbs have IR endings.

500

Translate: They can (are able to) dance.

Ellos/Ellas pueden bailar.
500

Translate: She begins the class.

Ella empieza la clase.

500

Translate: They say hello every day.

Ellos dicen "hola" todos los dias.

500
Translate: I correct the papers.

Yo corrijo los papeles.

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