| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] [adv] for [adj] months | 9 |
|
| 2 | be [v-ing] [adv prt] for [adj] months | 7 |
|
| 3 | be [v-ing] [adv] for [num] months | 7 |
|
| 4 | be [v-ing] on for [adj] months | 7 |
|
| 5 | be [v-ing] on for [adj] months | 7 |
|
| 6 | be [v-ing] [adv] for [det] months | 6 |
|
| 7 | be going [adv] for [adj] months | 6 |
|
| 8 | be [v-ing] [adv] for [adj] months | 6 |
|
