| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been described [prep] one [noun sg] | 8 |
|
| 2 | have been described [prep] one [noun sg] | 8 |
|
| 3 | have been described by one [noun sg] | 7 |
|
| 4 | have been described by one [noun sg] | 7 |
|
