| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv] [prep] a long | 6 |
|
| 2 | [be] [v-ing] [adv] [prep] a long | 6 |
|
| 3 | [v-ing] [adv] [prep] a long [noun] | 12 |
|
| 4 | [v-ing] [adv] [prep] a long [noun sg] | 12 |
|
