| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have long been [verb] [prep] a | 41 |
|
| 2 | have long been [vb pp] [prep] a | 41 |
|
| 3 | have long been [verb] as a | 37 |
|
| 4 | have long been [verb] as a | 37 |
|
| 5 | has long been [verb] [prep] a | 33 |
|
| 6 | have long been regarded [prep] a | 6 |
|
| 7 | have long been use [prep] a | 6 |
|
| 8 | have long been used [prep] a | 6 |
|
| 9 | have long been regard [prep] a | 6 |
|
| 10 | had long been [verb] [prep] a | 5 |
|
