| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] used for [adj] purpose | 129 |
|
| 2 | [be] [verb] for this purpose | 87 |
|
| 3 | [be] [vb pp] for this purpose | 87 |
|
| 4 | [be] used for this [noun] | 60 |
|
| 5 | [be] used for this purpose | 40 |
|
| 6 | [be] use for this purpose | 40 |
|
| 7 | [be] used [prep] this purpose | 40 |
|
| 8 | [be] used [prep] this purpose | 40 |
|
