| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [v-ing] for an | 31 |
|
| 2 | [verb] been [v-ing] for an | 31 |
|
| 3 | [vb past] be [v-ing] for an | 16 |
|
| 4 | had be [v-ing] for an | 12 |
|
| 5 | [vb -s] be [v-ing] for an | 10 |
|
| 6 | has be [v-ing] for an | 7 |
|
| 7 | [verb] be looking for an | 7 |
|
