| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [noun prp] [letter] | 16 |
|
| 2 | [be] [v-ing] [noun prp] [letter] | 11 |
|
| 3 | [was/were] [verb] [noun prp] [letter] | 5 |
|
