| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have [been] [v-ing] for | 55 |
|
| 2 | [vb mod] have been [v-ing] for | 55 |
|
| 3 | [vb mod] have be [v-ing] for | 55 |
|
| 4 | [vb mod] have [be] [v-ing] for | 53 |
|
| 5 | must have [be] [v-ing] for | 18 |
|
| 6 | would have [be] [v-ing] for | 14 |
|
| 7 | [vb mod] have [be] looking for | 13 |
|
| 8 | could have [be] [v-ing] for | 10 |
|
