| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] for a | 215 |
|
| 2 | [been] [v-ing] for a long | 25 |
|
| 3 | have [been] for a long | 17 |
|
| 4 | have [been] [v-ing] a long | 15 |
|
