noun
ADJECTIVE
▪ big , huge , major
VERB + QUESTION MARK
▪ put
▪
His arrival clearly puts a huge ~ over the future of the present team captain.
QUESTION MARK + VERB
▪ hang over sth , remain
▪
A big ~ hangs over the wisdom of the move.
PREPOSITION
▪ ~ against ( BrE )
▪
A slight ~ against her character remains.
▪ ~ over
▪
There is now a serious ~ over his leadership ability.