| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [adv] for several | 19 |
|
| 2 | [be] [verb] [adv] for several | 19 |
|
| 3 | been [verb] [adv] for several | 12 |
|
| 4 | [been] [verb] [adv] for several | 12 |
|
| 5 | [be] [v-ing] [adv] for several | 10 |
|
| 6 | [be] [verb] [adv prt] for several | 10 |
|
| 7 | [be] [verb] [adv] for several | 9 |
|
| 8 | [be] [vb pp] [adv] for several | 9 |
|
