grammar

Question 1

-ñir verbs preterite

Answer 1

3rd person singular ending is just -ó (not -ió)

Question 2

preterite stem change

Answer 2

only ir verbs that also change in present tense, only vowel in 3rd person stem, e>I, o>u

Question 3

-ir verb subjunctive stem change

Answer 3

E>ie and e>i stay the same, but also e>i in nosotros and vosotros forms
Dormir and morir have o>ue regularly plus o>u in nosotros/vosotros

Question 4

Subjunctive stem changes

Answer 4

-ar and -er verbs with changes in the stem vowel in the present indicative have these same changes in the subjunctive

Question 5

Caer yo form

Answer 5

Caigo

Question 6

Decir yo form

Answer 6

Digo

Question 7

Hacer yo form

Answer 7

Hago

Question 8

Oír yo form

Answer 8

Oigo

Question 9

Poner yo form

Answer 9

Pongo

Question 10

Salir yo form

Answer 10

Salgo

Question 11

Tener yo form

Answer 11

Tengo

Question 12

Traer yo form

Answer 12

Traigo

Question 13

Venir yo form

Answer 13

Vengo

Question 14

Caber yo form

Answer 14

Quepo

Question 15

Conocer yo form

Answer 15

Conozco

Question 16

Nacer yo form

Answer 16

Nazco

Question 17

Parecer yo form

Answer 17

Parezco

Question 18

Construir yo form

Answer 18

Constuyo

Question 19

Destruir yo form

Answer 19

Destruyo

Question 20

Ver yo form

Answer 20

Veo

Question 21

Dar and estar subjunctive

Answer 21

Regular but with accent mark

Question 22

Haber subjunctive stem

Answer 22

Hay-

Question 23

Ir subjunctive stem

Answer 23

Vay-

Question 24

Saber subjunctive stem

Answer 24

Sep-

Question 25

Ser subjunctive stem

Answer 25

Se-

Question 26

-ar verbs with stems ending in -c, -g or -z

Answer 26

c->qu, g->gu z->c

Question 27

-er -ir with stem ending in -g -gu or -c spell change

Answer 27

G->j gu->g c->z