| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [adv] been | 1378 |
|
| 2 | which have [adv] been | 1027 |
|
| 3 | [pron] have long been | 280 |
|
| 4 | [Wh det] have long been | 44 |
|
| 5 | which have long been | 36 |
|
| 6 | which have long [be] | 36 |
|
| 7 | which have long been | 36 |
|
| 8 | which [verb] long been | 36 |
|
| 9 | which have long be | 36 |
|
| 10 | which have long [been] | 36 |
|
