For vs Since with Present Perfect Continuous

Understand the difference between "for" and "since" in the present perfect continuous tense with clear examples.

Use "for" when talking about a period of time.

• Example: "I have been waiting for 20 minutes". "20 minutes" is a period of time, so we use "for".

Use "since" when talking about a point in time.

• Example: "We’ve been working together since 2018". "2018" is a specific point in time, so we use "since".

Watch the video practice using "for" and "since" correctly in your sentences.