Present perfect / past simple

PRESENT PERFECT

• time up to now: an event that happened at some point in the past e.g. in my life, this year, today.  The exact time it happened is not mentioned. 
• recent events which are in some way relevant to the present. The exact time it happened is not mentioned.
• ongoing situations or repeated events that started in the past and continue up to now. 

PAST SIMPLE

• a completed event where an exact time is given or is obvious.
• a situation or repeated events that started and finished in the past

TIME PHRASES TO TALK ABOUT THE PAST

past simple: last month, yesterday, ago, this time last week, on date/day, last week/ month / year
present perfect: just, already, yet, ever, lately, since, so far
both: never, always, for, recently, before, in the summer, today, this morning/afternoo

SINCE - od + określony moment w przeszłości (np. od poniedziału - since Monday)

FOR - od + okres czasu (np. przez 2 lata - for two years)

up to now - do teraz, do tej pory

mention - wzmianka

recent - najnowszy, niedawny

relevant - odnoszący sie do tematu, istotny, dotyczący (czegoś)

obvious - oczywisty, ewidentny

until - dopóki, aż

so far - jak dotąd, na razie, jak do tej pory

lately - ostatnio