| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | children have been | 207 |
|
| 2 | children [vb base] been | 104 |
|
| 3 | children have been | 104 |
|
| 4 | children had been | 78 |
|
| 5 | children [vb past] been | 78 |
|
| 6 | children [vb -s] been | 23 |
|
| 7 | children has been | 23 |
|
