Explanation
Expressing hope or wonder if something can be done: 'Isn't there a way...?', 'Can't we...?'
Formation
Verb-negative (often negative potential) + ものだろうか
Detailed explanation
This grammar point is used when the speaker expresses the hope, wish, or wonder if an action could be possible. It creates the nuance of 'Isn't there some way...?' or 'Can't I/you/we...?' in English, often with the negative potential form.
Examples
Motto jikan ga areba, koko ni korarenai mono darou ka.
If I had more time, wouldn't it be possible to come here?
Kanojo ni motto yoku setsumei sureba, rikai dekinai mono darou ka.
If I explain it better to her, wouldn't she understand?
Kono mondai o kaiketsu suru houhou wa nai mono darou ka.
Isn't there a way to solve this problem?
Jibun no machigai o mitomerarenai mono darou ka.
Can't I admit my own mistakes?
Practice
Grammar content sourced from hanabira.org.