| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have to be [verb] [adv prt] | 144 |
|
| 2 | [modal v] [verb] to be [v-ing] [adv prt] | 14 |
|
| 3 | [modal v] have to be [v-ing] [adv] | 13 |
|
| 4 | [modal v] have to [be] [v-ing] [adv prt] | 8 |
|
| 5 | [modal v] have to be [v-ing] [adv prt] | 8 |
|
| 6 | [modal v] have [prep] be [v-ing] [adv prt] | 8 |
|
| 7 | [modal v] have [prep] be [v-ing] [adv prt] | 8 |
|
