Certainly! Here are three complex sentences using the specified words:
Despite his insistent reminders about the meeting schedule, many team members still arrived late, leading to a frustrating start for everyone involved.
The project required a considerable amount of funding, which prompted the committee to reconsider their initial budget and explore alternative sources of financial support.
Although her initial instincts suggested that the impromptu decision was unwise, she ultimately realized that it was a sensible choice given the circumstances of the situation.