50 most important verbs

Front

Ser

Back

to be (permanent/essential characteristics)

Front

Estar

Back

to be (temporary states/locations)

Front

Tener

Back

to have

Front

Hacer

Back

to do, to make

Front

Ir

Back

to go

Front

Haber

Back

to have (auxiliary verb, e.g., 'I have eaten'); also 'hay' (there is/there are)

Front

Poder

Back

to be able to, can

Front

Decir

Back

to say, to tell

Front

Ver

Back

to see

Front

Dar

Back

to give