4.49 position in verb groups
When 'not' is used with a verb group which contains an auxiliary verb, it comes after the first verb in the group.
- They could not exist in their present form.
- They might not even notice.
- Unemployment has not been a major cause of the recent events.
- He had not attended many meetings.
- I was not smiling.
- The council was not entitled to any rebate.