| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been used [prep] [noun] [noun pl] | 24 |
|
| 2 | been use [prep] [noun sg] [noun pl] | 22 |
|
| 3 | been use for [noun] [noun pl] | 6 |
|
| 4 | been use as [noun] [noun pl] | 6 |
|
