BAD : I daren't to ask her for any more money.
GOOD : I daren't ask her for any more money.
◆◆◆
daren't do sth (WITHOUT to ): 'I daren't tell George what happened or he'll be furious.'
Compare: 'I don't dare tell/to tell George what happened ... .'
BAD : I daren't to ask her for any more money.
GOOD : I daren't ask her for any more money.
◆◆◆
daren't do sth (WITHOUT to ): 'I daren't tell George what happened or he'll be furious.'
Compare: 'I don't dare tell/to tell George what happened ... .'
Longman Common Errors English vocabulary. Английский словарь распространенных ошибок Longman. 2012