Timeline for ‘have not been able’ or ‘have been unable’?
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 5, 2019 at 13:58 | comment | added | David Siegel | @Y. zeng In that case i don't perceive any difference of meaning or nuance. | |
| Jun 5, 2019 at 13:54 | comment | added | Y. zeng | If it is qualified with 'so far', which is better, 'have been unable' or 'have not been able'? | |
| Jun 4, 2019 at 23:17 | history | answered | David Siegel | CC BY-SA 4.0 |