Premise: A man in a green shirt and blue jeans is welding .
Correct statement: It is improbable that the man in the green shirt was making something for himself
Incorrect statement: It is likely that the man in the green shirt was making something for himself
Correct statement: Chances are slight that the man is welding by his friend 's house .
Incorrect statement: There is a very good chance that the man is welding by his friend 's house .
Correct statement: We doubt that a father is working on a welding project .
Incorrect statement: It is certain that a father is working on a welding project .
Correct statement: It is impossible that there is a welder restoring an old Coca-Cola machine .
Incorrect statement: It is probable that there is a welder restoring an old Coca-Cola machine .
Correct statement: There is a better than even chance that a worker works on a task with a welder
Incorrect statement: It is improbable that a worker works on a task with a welder