| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] have been [v-ing] | 35 |
|
| 2 | [vb base] to have be [v-ing] | 25 |
|
| 3 | seem have be [v-ing] | 17 |
|
| 4 | [vb base] has be [v-ing] | 8 |
|
| 5 | appear have be [v-ing] | 6 |
|
