Los meses
to look for
to know
stem change
random
100

el primero del ano

enero

100

the infinitve verb that means to look for

buscar

100
the infinitive verb that means to know

saber

100

the infinitive verb meaning "to find"

encontrar

100

Good job!

Bien hecho!

200

el ultimo del ano

diciembre

200

I look

busco

200

you (informal) know

sabes

200

the letter "o" in encontrar changes to these two letters in all but one form 

u and e
200

conjugate haber in the present tense

he

has

ha

hemos

han

300

Estamos en el mes de...

marzo

300

you (informal) look 

buscas

300

to know someone

conocer

300

I find

encuentro

300

to indicate that a piece of writing is done "by" someone you use the word: 

what is "por"
400

el mes de la pascua

Abril

400

s/he looks

busca

400

they know

saben

400

they find

encuentran

400

the verb to get

conseguir

500

el mes del dia de la independencia por los paises latino

Septiembre

500

you (formal) look

usted busca

500

the yo form of saber

yo se

500

we find

encontramos

500

the preterite ending for the tu form of an -ar verb

-aste