Spanish phrase
Perdón, es que ~.
Meaning
Sorry it's just that ___.
When to use it
A brief apology offering a simple excuse. It is used to soften explanations for late replies or small mistakes in casual or polite interactions.
Example dialogue
Perdón, es que no vi tu mensaje antes.
Sorry it's just that I didn't see your message earlier.
No pasa nada, gracias por contestar ahora.
No worries, thanks for replying now.