| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [v-ing] on for [adj] | 8 |
|
| 2 | must be getting [adv prt] for [adj] | 8 |
|
| 3 | must be [v-ing] [adv prt] for [adj] | 8 |
|
| 4 | must be [v-ing] [adv prt] for [num] | 7 |
|
