The phrase "speaking reasonably" is correct and usable in written English.
You can use it to describe a situation in which a person is being reasonable, calm, or level-headed. For example: "When I told him that I was leaving, he remained composed and responded by speaking reasonably."
The final test for the Utopians, which they fail badly, comes when a strange family starts picking strawberries in their fields and, after speaking reasonably to the poachers and receiving no response, Preston and another colonist, not knowing what else to do, drive them off the land by taking potshots in the air with a gun filled with blanks.
But, speaking reasonably, that return policy was shenanigans.
After repeated practice with the good pizza-delivery place, can now speak reasonably coolly enough on the phone to make three calls to government representatives every day.
He speaks, reasonably enough, of Iran's past sponsorship of terrorist acts, its bloody suppression of the popular uprising that followed the election of 2009, and former President Mahmoud Ahmadinejad's call to "wipe Israel off the map".
In 1995, when it seemed Colin Powell might run for president, Powell explained his appeal to white voters thus: "I speak reasonably well, like a white person", and, visually, "I ain't that black".
The gorgeous girl in "Chennai Express" does speak reasonably good Tamil most of the time, which is rare in Hindi films, but the dangerous villain, supposedly a Tamil thug, speaks Tamil with an unprecedented accent, as if he had suffered a severe head injury.
In noting that a four-year college degree isn't for everyone, he spoke reasonably about the potential of paid, hands-on workplace experiences that train workers and link them to employers.
"In noting that a four-year college degree isn't for everyone," Muro writes, "he spoke reasonably about the potential of paid, hands-on workplace experiences that train workers and link them to employers.
Speak reasonably and softly, but stand for truth.
Part of what has become second nature to him is speaking so reasonably that it's almost aggravating.
More generally speaking, a reasonably complete account of the ethics of risk must distinguish between intentional and unintentional risk exposure and between voluntary risk-taking, risks imposed on a person who accepts them, and risks imposed on a person who does not accept them.
