Questions with "le ma"

Asking questions about completed actions will involve using both 了 and 吗. These are simply added to the end of a sentence or statement. This means you might see questions with 了 and 吗 in different structures.

A general structure is:

Subject + Verb + Object + 了吗

Another is:

Object + Verb + 了吗

Notice that in this one the object is introduced first as a topic.

Some examples:

• 北京 去 了 吗？
• 吃饭 了 吗？
• 你 已经 认识 王 先生 了 吗？