B1Englishen.b1.001

Present perfect continuous: form

Structure:

subject + have/has + been + verb-ing

Example:

I've been waiting for an hour.

Examples

I've been waiting for an hour.

FDA Still Has Not Found the Cause of Baby Botulism Outbreak

Key phrase: “teamed up with a lab”

Question 1 of 20 correct

Which grammar pattern does this sentence use? "I've been waiting for an hour."

Although / though / even though + clause

Articles: the + nationality groups and unique nouns

Articles: zero article with abstract concepts

As long as / provided that / on condition that

Be allowed to: passive permission