No | Pattern | Freq | Relations |
---|---|---|---|
1 | [vb past] [be] [v-ing] for years | 19 |
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2 | [be] [v-ing] for several years | 14 |
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3 | [vb past] [be] [v-ing] for several | 11 |
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[vb past] [be] [v-ing] for several years Next page
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