| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been the first | 178 |
|
| 2 | have been the first | 178 |
|
| 3 | had been the first | 69 |
|
| 4 | have been the first | 47 |
|
| 5 | to have been the first | 31 |
|
| 6 | has been the first | 11 |
|
| 7 | have been the first | 11 |
|
| 8 | having been the first | 5 |
|
