| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [verb] | 7119 |
|
| 2 | [vb mod] have been [v-ing] | 1003 |
|
| 3 | [vb mod] have been read | 11 |
|
| 4 | [vb mod] [verb] been reading | 10 |
|
| 5 | [modal v] have been reading | 10 |
|
| 6 | [vb mod] have [be] reading | 10 |
|
| 7 | [vb mod] have be reading | 10 |
|
| 8 | [vb mod] have [been] reading | 10 |
|
