| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] a roof [prep] [pos pn] head | 6 |
|
| 2 | [to-vb] a roof over [pos pn] head | 6 |
|
| 3 | [to-vb] a roof over [pos pn] head | 6 |
|
