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Other time expressions we use with the present perfect are: always, just, ever, never, so far, today, this week/month/etc, how long, lately, recently, still (in negations), etc, for/since
Present Perfect Continuous

+	have/has been + verb + ing	He’s been studying really hard.
--	have/has not been + verb + ing	He hasn’t been studying really hard..
?	have/has …. been + verb + ing?	Have they been studying really hard?

We use the present perfect continuous:

• 
  to put emphasis on the duration of an action which started in the past and continues up to the present. We have been working on this project all morning.
  
• 
  for an action which started in the past and lasted for some time. It may still be continuing, or have finished but left a result still visible in the present. She's tired because she has been working very hard lately.
  
• 
  to express anger, irritation or annoyance. She has been reading my newspaper without asking me.
  
• 
  for repeated actions in the past continuing to the present. He has lost weight because he has been going to the gym every day
  

Time expressions used with the present perfect (simple and continuous):
since (= from a starting point in the past) is used with the present perfect (simple and continuous). I haven't seen Paul since we left school.
for (= over a period of time) is used with the present perfect (simple and continuous). They've been working on the project for months.
Note: with the verbs live, work, teach and feel we can use the present perfect or the present perfect continuous with no difference in meaning. He has lived/has been living in Manchester for the last six years.