| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [been] travel for [num] | 6 |
|
| 2 | 's been travel for [num] | 6 |
|
| 3 | 's be travel for [num] | 6 |
|
| 4 | 's [be] travelling for [num] | 6 |
|
