| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] for several [noun pl] | 10 |
|
| 2 | be [adv] for several [noun] | 10 |
|
| 3 | been [adv] for several [noun] | 5 |
|
| 4 | [been] [adv] for several [noun] | 5 |
|
| 5 | [be] [adv] for several days | 5 |
|
| 6 | [be] [adv] for several day | 5 |
|
