| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [vb pp] [prep] several | 42 |
|
| 2 | [vb base] been [vb pp] [prep] several | 42 |
|
| 3 | [vb base] [been] [vb pp] in several | 9 |
|
| 4 | [vb base] [been] [vb pp] by several | 9 |
|
| 5 | [vb base] [been] [vb pp] at several | 6 |
|
| 6 | [vb base] [been] [vb pp] for several | 6 |
|
