| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] for this purpose | 87 |
|
| 2 | be [verb] for this purpose | 87 |
|
| 3 | been [verb] for this [noun] | 62 |
|
| 4 | been [verb] for [adj] purpose | 34 |
|
| 5 | been [verb] for [det] purpose | 14 |
|
| 6 | been [verb] [prep] this purpose | 7 |
|
| 7 | been [verb] [prep] this purpose | 7 |
|
| 8 | been [verb] for this purpose | 7 |
|
| 9 | been [verb] for this purpose | 7 |
|
| 10 | [been] [verb] for this purpose | 7 |
|
