had been complicating
- past perfect progressive of complicate.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
While extreme heat and dry conditions had been complicating firefighting efforts, on Friday night, Ventura county said in a statement that "favourable weather conditions" had allowed firefighters to make "good progress in supressing the blaze."
From BBC ● Aug. 9, 2025
