| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been empty for [adj] [noun] | 16 |
|
| 2 | been empty for [adj] [noun pl] | 12 |
|
| 3 | been empty for [adj] year | 12 |
|
| 4 | been empty for [adj] years | 12 |
|
| 5 | been empty for [det] [noun] | 10 |
|
| 6 | been empty for [num] [noun] | 6 |
|
