有频度副词的一般现在时的句子如何改成否定句

问题描述:

有频度副词的一般现在时的句子如何改成否定句
Do paintings always have a meaning or not?(否定回答)
Are they sometimes pretty patterns or not?(肯定回答)
看清楚!有Or not 不可以不直接用yes 或no来回答!

选择疑问句最好用完整的句子回答.Paintings do not always have a meaning.They are sometimes pretty patterns.