| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [vb pp] to be [v-ing] | 75 |
|
| 2 | can [be] [vb pp] to be [v-ing] | 25 |
|
| 3 | [vb mod] [be] said to be [v-ing] | 25 |
|
| 4 | [vb mod] [be] seen to be [v-ing] | 19 |
|
| 5 | could [be] [vb pp] to be [v-ing] | 14 |
|
| 6 | may [be] [vb pp] to be [v-ing] | 11 |
|
| 7 | [vb mod] [be] [vb pp] to be doing | 6 |
|
| 8 | must [be] [vb pp] to be [v-ing] | 5 |
|
| 9 | [vb mod] [be] assumed to be [v-ing] | 5 |
|
| 10 | will [be] [vb pp] to be [v-ing] | 5 |
|
| 11 | might [be] [vb pp] to be [v-ing] | 5 |
|
| 12 | [vb mod] [be] considered to be [v-ing] | 5 |
|
