我们要诚实怎么说英语

To be honest, you can say "To be honest" or "Honestly" to indicate that you are being sincere and truthful. For example:
"To be honest, I don't really like that movie."
"Honestly, I didn't expect the exam to be so difficult."
Another way to express honesty in English is to use the phrase "I'm telling the truth" or "I'm not lying." For example:
"I'm telling the truth when I say that I've never been to that restaurant."
"I'm not lying when I say that I finished the project on time."