| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] | 6057 |
|
| 2 | have long been [prep] | 31 |
|
| 3 | have long been [v-ing] | 29 |
|
| 4 | long been [v-ing] [prep] | 9 |
|
