| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] use [prep] [det] [noun] | 563 |
|
| 2 | [be] [verb] [prep] [det] purpose | 147 |
|
| 3 | [be] use [prep] [adj] purpose | 130 |
|
| 4 | [be] use [prep] [det] purpose | 67 |
|
