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told; happened was telling; had happened had; told told; had happened
When it was It was when Was it when When was it
It happened that When it happened What happened That has happened
what happening what happened when happening what was happening
happens was happened happened has happened
It will be broken. It will be made stronger. It will be filled with water. It wilt be tested by pilots.
of, in to, on of, on to, in
took off put off turned off got off
happened chance take place took place
waited, happened have waited, has happened had waited, was happened had been waiting, had happened
what happened what was happened w
held out held in held on held up
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