"Then delete this, okay? Maria might see it."
Here's a breakdown of the phrase:
* Tapos: This means "then" or "after that".
* Delete mo to: "Delete this". "Mo" is a pronoun that indicates "you" in the informal form.
* ha: This is a filler word used for emphasis or confirmation, similar to "okay" or "right?"
* baka: This means "maybe" or "perhaps."
* makita ni Maria: "Maria might see it." "Makita" means "see" and "ni Maria" is a prepositional phrase meaning "by Maria."
The phrase is a request to delete something because Maria might see it, implying that the sender doesn't want Maria to see it.