Negativa e Interrogativa de "Jane's family believe...''

Gostaria de saber a negação e a interrogação da frase:
Jane's family believe there are solutions to problems.

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2 16 113
Does Jane's family believe there are solutions to problems?

Jane's family does not believe there are solutions to problems.

O substantivo 'family' é mais comum no singular, embora também possa ser usado com o do.

;)
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2 3 38
Do Jane's family believe there are solutions to problems?

Jane's family do not believe there are solutions to problems.

I hope I have helped.
6 48 1.1k
DOES because family usually "believes", it believes.
Do if you think of family as a group. There are groups that take both forms, the like of "police" etc, can be thought collectively, then "they are".
Anyway, DOES would be the usual way most writers would put on paper.


O Estudante and Alexandre had already given the question a stab, but I thought this rule of thumb could come in handy to future use by the learners.
And welcome to the Forum, enjoy it!
Jane's family believe there are no solutions to problems.
6 48 1.1k
Technically yes, but I think that the bit "no solutions" necessarily means a negation. It rather means that they believe there´s zero solution, not one solution. That is, they positively believe that.
If it is to negate the sentence, one would have to "negate the belief", hence the use of "don´t/do not" close to the verb believe.
In passing, I must say that DO NOT suggests a more formal sentence, whereas with DON´T it would be a less formal one (i.e. A more colloquial way).