| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] speak [prep] an | 15 |
|
| 2 | be speak [prep] an | 15 |
|
| 3 | [be] speaking [prep] an | 13 |
|
| 4 | [was/were] speak [prep] an | 8 |
|
| 5 | was speak [prep] an | 6 |
|
