Translation of "Shudder" in Spanish

I shudder to think of it.

Me dan escalofríos de sólo pensarlo.

I shudder at the thought of what might happen.

Me estremezco al pensar en lo que podría pasar.

Shallow are the souls that have forgotten how to shudder.

Superficiales son las almas que han olvidado cómo estremecerse.

I've never been religious, but hearing the Lord's Prayer in Latin makes me shudder.

Nunca fui religioso, pero me estremece escuchar el Padrenuestro en latín.

- He shuddered at the terrible scene.
- The terrible scene made him shudder.
- The terrible scene sent shivers down his spine.
- The terrible scene made him tremble in fear.

Se estremeció ante la terrible escena.