| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been ill [prep] some time | 6 |
|
| 2 | have been ill [prep] some time | 6 |
|
| 3 | [vb past] been ill [prep] some time | 6 |
|
| 4 | [verb] been ill [prep] some time | 6 |
|
