| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [conj] [pron] [is] | 416 |
|
| 2 | be [v-ing] [conj] [pron] [is] | 228 |
|
| 3 | [be] [v-ing] [conj] [pron] [is] | 228 |
|
| 4 | [is] [v-ing] [conj] [pron] [is] | 110 |
|
| 5 | is [v-ing] [conj] [pron] [be] | 98 |
|
