| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [v-ing] a | 981 |
|
| 2 | have be [v-ing] a | 916 |
|
| 3 | had be [verb] a | 652 |
|
| 4 | had be [v-ing] [art] | 626 |
|
| 5 | [vb past] be [v-ing] a | 333 |
|
| 6 | had [be] [v-ing] a | 275 |
|
