| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] for [det] months | 11 |
|
| 2 | [been] [verb] for [det] months | 11 |
|
| 3 | [been] [verb] for several months | 6 |
|
| 4 | [been] [v-ing] for [det] months | 6 |
|
| 5 | [been] [vb pp] for [det] months | 5 |
|
