| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] [adv] for several [noun pl] | 8 |
|
| 2 | [been] [v-ing] [adv] for several [noun] | 8 |
|
| 3 | been [verb] [adv] for several [noun] | 8 |
|
| 4 | [been] [verb] [adv] for several [noun] | 8 |
|
