| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] for a long time | 31 |
|
| 2 | be [v-ing] for a long time | 31 |
|
| 3 | [be] [v-ing] for a long time | 29 |
|
| 4 | [been] [v-ing] for a long time | 23 |
|
| 5 | been [v-ing] for a long time | 23 |
|
