| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv] for a [noun sg] | 20 |
|
| 2 | [be] [v-ing] [adv] for a [noun sg] | 10 |
|
| 3 | [be] [v-ing] [adv prt] for a [noun sg] | 10 |
|
