| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] caused by [adj] [noun] | 11 |
|
| 2 | had [been] caused by [adj] [noun] | 11 |
|
| 3 | [vb past] been caused by [adj] [noun] | 11 |
|
| 4 | [vb past] [been] caused by [adj] [noun] | 9 |
|
| 5 | [vb past] [been] caused by [adj] [noun sg] | 6 |
|
