| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [v-ing] for [num] hours | 17 |
|
| 2 | have been [v-ing] for [num] hours | 17 |
|
| 3 | had be [v-ing] for [num] hours | 7 |
|
| 4 | 's be [v-ing] for [num] hours | 6 |
|
| 5 | have be travelling for [num] hours | 5 |
|
