Vowel change irregular present simple

Vowel change

​The following verbs are only irregular in the first person ´yo´. They are conjugated like regular verbs in all other persons.

Exception 1

Match

Match the following

• hacer

• caer

• dar

• decir

• tener

hago

caigo

doy

digo

tengo

• hago

• caigo

• doy

• digo

• tengo

Match

Match the following

• poner

• saber

• salir

• traer

• valer

pongo

sé

salgo

traigo

valgo

• pongo

• sé

• salgo

• traigo

• valgo

Match

Match the following

• venir

• ver

• salir

• traer

• valer

vengo

veo

salgo

traigo

valgo

• vengo

• veo

• salgo

• traigo

• valgo

For verbs ending in DUCIR or with a vowel+cer, we add a Z before the C in the first person. Except, the verb hacer. The rest of the people are conjugated like regular.

Exception 2

Match

Match the following

• traducir

• conocer

• conducir

traduzco

conozco

conduzco

• traduzco

• conozco

• conduzco

For verbs ending in UIR we add Y before endings that do not start with i.

Exception 3

Match

Match the following

• distribuir

• construir

• recluir

• concluir

distribuyo

construyo

recluyo

concluyo

• distribuyo

• construyo

• recluyo

• concluyo

Reorder

First person conjugated (yo) for HACER

• H

• A

• G

• O

1

2

3

4

• 1
• 2
• 3
• 4

Reorder

First person conjugated (yo) for PONER

• P

• O

• N

• G

• O

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

First person conjugated (yo) for SABER

• S

• É

• .

1

2

3

• 1
• 2
• 3

Reorder

First person conjugated (yo) for TENER

• T

• E

• N

• G

• O

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

First person conjugated (yo) for

• TR

• A

• IG

• O

1

2

3

4

• 1
• 2
• 3
• 4

Reorder

First person conjugated (yo) for TRADUCIR

• TRA

• DU

• Z

• CO

1

2

3

4

• 1
• 2
• 3
• 4

Reorder

First person conjugated (yo) for CONOCER

• CO

• NO

• Z

• CO

1

2

3

4

• 1
• 2
• 3
• 4

Reorder

First person conjugated (yo) for SUSTITUIR

• SUS

• TI

• TU

• YO

1

2

3

4

• 1
• 2
• 3
• 4

Reorder

First person conjugated (yo) for CONSTRUIR

• CONS

• TRU

• Y

• O

1

2

3

4

• 1
• 2
• 3
• 4