| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [to-vb] [pers pn] [vb infin] | 156 |
|
| 2 | [v-ing] [pers pn] must [vb infin] | 57 |
|
| 3 | [to-vb] [pers pn] must [vb infin] | 52 |
|
| 4 | [v-ing] [to-vb] [pers pn] must | 7 |
|
