| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] na [verb] | 6425 |
|
| 2 | [be] [v-ing] na [vb infin] | 6397 |
|
| 3 | [be] [v-ing] [prep] buy | 61 |
|
| 4 | [be] [verb] na buy | 61 |
|
| 5 | [be] [v-ing] na buy | 61 |
|
| 6 | [be] [v-ing] na buy | 61 |
|
| 7 | [be] [v-ing] [to] buy | 61 |
|
