| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [vb pp] for this [noun sg] | 31 |
|
| 2 | are [vb pp] for this purpose | 8 |
|
| 3 | are [vb pp] for this purpose | 8 |
|
| 4 | are used for this [noun] | 6 |
|
| 5 | are needed for this [noun] | 5 |
|
