3 sentences

1. 广场上有一群大妈在跳广场舞。

   guǎng​chǎng shàng yǒu yī qún dà​mā zài tiào guǎng​chǎng​wǔ.

   There is a group of middle-aged women performing square dances in the plaza.

   Source: Dong Chinese Dictionary

2. 王大妈常说，她家闺女可还是个黄花大闺女呢。

   Wáng dà​mā cháng shuō, tā jiā guī nǚ kě hái shì gè huáng huā dà guī nǚ ne.

   Auntie Wang often says that her daughter is still a maiden.

   Source: Dong Chinese Dictionary

3. 春节期间，大伯和大妈都会回老家过年。

   Chūn​jié qī​jiān, dà​bó hé dà​mā dōu huì huí lǎo​jiā guò​nián.

   During the Spring Festival, my eldest uncle and his wife will return to their hometown for the New Year.

   Source: Dong Chinese Dictionary