| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [be] [to-vb] [v-ing] [art] [adj] | 6 |
|
| 2 | [noun sg] [be] [to-vb] [v-ing] [art] [adj] | 6 |
|
| 3 | [pron] [be] [to-vb] [v-ing] [art] [adj] | 6 |
|
| 4 | [pers pn] [be] [to-vb] [v-ing] [art] [adj] | 5 |
|
| 5 | [be] [adj] [to-vb] [v-ing] [art] [adj] | 20 |
|
| 6 | [be] [adj] [to-vb] [v-ing] [art] [adj] | 20 |
|
| 7 | [be] [verb] [to-vb] [v-ing] [art] [adj] | 14 |
|
| 8 | [be] [vb pp] [to-vb] [v-ing] [art] [adj] | 12 |
|
| 9 | [be] difficult [to-vb] [v-ing] [art] [adj] | 5 |
|
| 10 | [be] difficult [to-vb] [v-ing] [art] [adj] | 5 |
|
| 11 | [be] [to-vb] [prep] [v-ing] [art] [adj] | 11 |
|
| 12 | [be] [to-vb] [prep] [v-ing] [art] [adj] | 11 |
|
| 13 | [be] [to-vb] [v-ing] [prep] [art] [adj] | 7 |
|
| 14 | [be] [to-vb] [v-ing] [prep] [art] [adj] | 7 |
|
| 15 | [be] [to-vb] [v-ing] [art] [adj] [noun] | 13 |
|
| 16 | [be] [to-vb] [v-ing] [art] [adj] [noun sg] | 10 |
|
