| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there have long been | 25 |
|
| 2 | there have long been | 25 |
|
| 3 | there has long been | 12 |
|
| 4 | there had long been | 7 |
|
| 5 | there have long been | 5 |
|
