| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] for [det] | 217 |
|
| 2 | [been] [v-ing] for months | 13 |
|
| 3 | [v-ing] for [det] months | 12 |
|
| 4 | [been] for [det] months | 5 |
|
