Kita dapat menggunakan Present perfect tense tanpa durasi waktu seperti "for two weeks" (selama 2 minggu), "for an hour" dsb.
Tanpa durasi waktu tense ini mempunyai makna secara umum sebagai "Lately" / "recently" (akhir-akhir ini).
Tanda waktu yang digunakan adalah RECENTLY / LATELY untuk menekankan makna.
Contoh :
- Recently, I have been feeling really tired.
- She has been reading too much book lately
- Have you been exercising lately?
- Marry has been feeling a little depressed
- Lisa has not been practicing her English
- What have you been doing?
