| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a long time | 49 |
|
| 2 | been [v-ing] [prep] a long | 30 |
|
| 3 | been [prep] a long time | 25 |
|
| 4 | been [v-ing] a long time | 11 |
|
