| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] [adj] [noun sg] | 8472 |
|
| 2 | be useful [prep] [adj] | 79 |
|
| 3 | be useful [prep] [noun sg] | 69 |
|
| 4 | useful [prep] [adj] [noun sg] | 60 |
|
| 5 | be useful [adj] [noun sg] | 5 |
|
