| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] several [noun pl] | 704 |
|
| 2 | are several [noun pl] | 548 |
|
| 3 | are [vb pp] [noun pl] | 435 |
|
| 4 | are [vb pp] several | 10 |
|
