2186. The accusative with the future infinitive is used with verbs of
hoping, promising, and threatening: as,
#id sēsē effectūrōs spērābant#, 7, 26, 2, _they hoped to carry it out_.
#pollicentur sēsē ē̆ī dēditūrōs#, 5, 20, 2, _they volunteer to surrender
to him_. But sometimes the present infinitive alone: see 2236.