Just
‘Just’ is usually used only with the present perfect tense and it means ‘a short time ago’.
I’ve just seen Susan coming out of the cinema.
Mike’s just called. Can you ring him back please?
Have you just taken my pen? Where has it gone?
In the present perfect, ‘just’ comes between the auxiliary verb (‘have’) and the past participle.
- See more at: http://learnenglish.britishcouncil.org/en/grammar-reference/just-yet-still-already#sthash.afjl8aop.dpuf