Present perfect continuous expresses an action that recently stopped or is still going on. It puts emphasis on the duration or course of the action.
|Actions beginning in the past and still continuing (focus is on the action) – mostly with 'since' (a point of time) or 'for' (a period of time):||I have been waiting for her for five hours|
|Recently completed actions:||He has been watching too many videos.|
Present perfect continuous has the meaning of 'lately'. If you use the present perfect continuous in a question such as 'Have you been feeling alright?', it can suggest that the person looks sick or unhealthy. It is possible to insult someone by using this tense incorrectly.
Form: have/has + been + infinitive + -ing
|I, you, we, they||have been running.||have not been running.||Have you been running?|
|He, she, it||has been running.||has not been running.||Has it been running?|
Formation of the present participle (often called the -ing or continuous form)
|adding -ing to the bare infinitive:||work – working|
Consonant after a short, stressed vowel at the end of the word
If the consonant is not stressed
double the consonant:
do not double it:
sit – sitting
benefit – benefiting
|In British English||double one -l at the end of the word:||travel – travelling|
One -e at the end of the word
leave out the -e:
write – writing
see – seeing
|Verbs ending in -ie||change 'ie' to 'y':||lie – lying|
|Verbs ending in -c||change 'c' to 'ck':||picnic – picnicking|
|If the starting point is given,we use ||'since'||I have been a teacher since 2004.|
|If the period of time is given,we use||'for'||I have been a teacher for ten years.|
Signal words: 'all day', 'the whole day', 'since', 'for'.
Questions with: 'how long'.