◆未来の不確定な時期に何かが起こる可能性があるとき
Once / As soon as / Whenever
[ex] once I meet a candidate I like, I will fill the position.
◆これまでの特定の期間を示すとき
For as long as
[ex] I'm sure Karen will do a great job as sales manager. The as long as I've known her, she's been dedicated to the department.
◆名詞から始まる場合で、話し手の主張が反対意見を示すとき
Despite / in spite of
despite his knowledge of marketing laws, the candidate for legal consultant is not right for the position.
◆話し手の主張が反対意見を示すとき
while / even though / though / although
while trading stock online has become more popular, many investors still use stockbrokers.
◆話し手の主張が二つの関係性のあるセンテンスであるとき
nontheless / nevertheless
Our company leads the industry in automotive design. neverthless, our competitors are catching up to us.