| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [to-vb] a long [noun] | 8 |
|
| 2 | [is] [v-ing] [to-vb] a long [noun sg] | 8 |
|
| 3 | [is] [v-ing] [to-vb] a long time | 6 |
|
| 4 | [is] [v-ing] [to-vb] a long time | 6 |
|
