The present simple tense

THE PRESENT PERFECT CONTINUOUS TENSE

I have been doing

S + have/has been + V­­­­­ ^1ing		I have been waiting for him for an hour.
S + have/has been +not + V­­­­­ ^1ing		You have not been waiting for him for an hour.
Have/Has+ S +been+­­ V­­­­­ ^1ing		Have they been waiting for him for an hour?
Wh+ have/has been +S + V­­­­­ ^1ing		Where has she been waiting for him for an hour?

Key words: for , since ,all + vaqt =all week, all month , whole day, how long…?
The present perfect continuous tense is used:

1. Gapirilayotgan vaqtda tugayotgan yoki bir oz oldinroq tugagan ish – harakatni ko’rsatish uchun hizmat qiladi. Ish- xarakatning tugayotganligini oxirgi bosqichlari natija sifatida ko’rinib turadi.