The phrase "were concerned" can be used to express worry or interest in something. Some common synonyms for this phrase include "were troubled," "were bothered," "were anxious," "were worried," "were interested," "were focused," and "were invested." These synonyms indicate that the speaker is actively thinking about something and wants to make sure that they are fully aware of what is going on. Additionally, they show that the speaker is emotionally invested in the topic and wants to make sure that everything turns out alright. Overall, there are many different ways to express concern, and each synonym has its own unique connotations and shades of meaning.