| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb mod] be [adj] for | 127 |
|
| 2 | [Wh det] [vb mod] be [adj] for | 116 |
|
| 3 | [pron] [vb mod] be useful for | 30 |
|
| 4 | [Wh det] [vb mod] be useful [prep] | 30 |
|
| 5 | [Wh det] [vb mod] [be] useful for | 10 |
|
| 6 | [Wh det] [vb mod] be useful for | 10 |
|
| 7 | [Wh det] [modal v] be useful for | 10 |
|
