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