| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [adv] for [adj] | 176 |
|
| 2 | have been [adv] [prep] several | 10 |
|
| 3 | have be [adv] for several | 8 |
|
| 4 | [verb] been [adv] for several | 8 |
|
| 5 | have [been] [adv] for several | 8 |
|
| 6 | have [be] [adv] for several | 8 |
|
