| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] doing [pron] [noun] | 266 |
|
| 2 | [be] [verb] [pron] [letter] | 17 |
|
| 3 | [be] [v-ing] [pron] [letter] | 15 |
|
| 4 | [be] do [pron] [letter] | 8 |
|
