| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used for [adj] purposes | 33 |
|
| 2 | be used for [det] purpose | 31 |
|
| 3 | be used for [adj] purpose | 28 |
|
| 4 | be used for [adj] purpose | 26 |
|
| 5 | be used for this purpose | 20 |
|
| 6 | be used for this purpose | 20 |
|
