| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [adj] for | 389 |
|
| 2 | [verb] been empty for | 29 |
|
| 3 | have been empty for | 29 |
|
| 4 | had [be] empty for | 12 |
|
| 5 | had been empty for | 12 |
|
| 6 | had be empty for | 12 |
|
| 7 | had been empty [prep] | 12 |
|
| 8 | had been empty [prep] | 12 |
|
| 9 | [vb past] been empty for | 12 |
|
| 10 | had [been] empty for | 12 |
|
