This is the most common pronunciation problem that native Spanish speakers have when learning English. This short video has helped a few of my students. Try it out!
https://www.youtube.com/watch?v=4_s12MkuvFQ
Thanks for the video!
In fact I have problems memorizing past simple irregular verbs.
For example:
The waiter arrived to my table. / The waiter came to my table.
In spanish is the same: El mesero vino a mi mesa.