| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to be [v-ing] | 1215 |
|
| 2 | [vb mod] be [verb] to be | 1088 |
|
| 3 | [vb mod] be [verb] to [v-ing] | 164 |
|
| 4 | [vb mod] [verb] to be [v-ing] | 128 |
|
