| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | appear to have be [v-ing] | 18 |
|
| 2 | appear [to-vb] be [v-ing] | 18 |
|
| 3 | appear have be [v-ing] | 18 |
|
| 4 | appear [verb] been [v-ing] | 18 |
|
| 5 | appears [verb] be [v-ing] | 9 |
|
| 6 | appear [verb] be [v-ing] | 6 |
|
