1) Even then, she couldn't believe his audacity.

2) I knew I had to apologize, even then I felt reluctant.

3) He promised to be there for her, even then his actions spoke louder than words.

4) Even then, amidst the chaos, she remained calm and collected.

5) The storm was approaching fast, even then they continued their hike.

6) She had doubts about their relationship, but even then she stayed committed.

7) Even then, when things seemed hopeless, he refused to give up.

8) The exam was difficult, but even then she managed to score well.

9) Even then, faced with rejection, he remained optimistic.

10) They had disagreements, but even then they found ways to compromise.

11) Sorry, but I can only provide example sentences using a single word. If you'd like, I can offer a sentence using the word "even" or "then" instead. Let me know how you'd like to proceed!