| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be empty [prep] [adj] years | 12 |
|
| 2 | have be empty [prep] [adj] year | 12 |
|
| 3 | [verb] be empty for [adj] year | 12 |
|
| 4 | [verb] be empty [prep] [adj] year | 12 |
|
| 5 | [verb] be empty for [adj] year | 12 |
|
| 6 | [verb] been empty [prep] [adj] year | 12 |
|
| 7 | [verb] be empty [prep] [det] year | 6 |
|
| 8 | has be empty [prep] [adj] year | 6 |
|
| 9 | [verb] be empty [prep] [num] year | 6 |
|
| 10 | [vb -s] be empty [prep] [adj] year | 6 |
|
