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waited waiting wait to wait
not to , when to, untill to not. Till not to; until
borrowed money waited for a good time to open his business developed an inadequate plan studied, prepared a plan, and trained himself
he received did he receive didn’t he receive had he received
waited waiting to wait wait
did he find until he found that he found had he found
must have waited might have waited would have waited could have waited
regularly usually formally Normally
have been waiting waited had waited would have waited
he received did he receive didn’t he receive had he received
waited，to waited，until didn't wait，to didn't wait，until
did he find until he found that he found had he found
his mother allowed his mother had allowed did his mother allow had his mother allowed
didn’t wait waited, until didn’t wait, before waited, after
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