| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] the [noun sg] | 1109 |
|
| 2 | must be the [noun sg] | 369 |
|
| 3 | must be [v-ing] the | 25 |
|
| 4 | must be [v-ing] [noun sg] | 17 |
|
