present perfect and past simple

present perfect and past simple

present perfect simple: have/has + past participle (worked, seen...)

AN ACTION THAT BEGAN IN THE PAST AND CONTINUES UNTIL THE PRESENT "I have lived in New York for five years"

TIME EXPRESSIONS Never Ever Already Yet Just For Since

AN ACTION THAT TOOK PLACE AT AN UNDETERMINED TIME IN THE PAST, BUT IT IS CONNECTED TO THE PRESENT "Mark has finished school recently"

NEVER, EVER ALREADY and JUST are placed between Have/has and the past participle. YET is placed at the end of the sentence. "I've already seen this film twice." "I've never been to New York." "Have you ever been abroad?" "The baby has just woken up." "Anna hasn't found a job yet." In affirmative we use JUST, NEVER and ALREADY. In negative we use YET. In interrogative we use ALREADY, EVER, YET and JUST. FOR is used for periods of time and SINCE for specific moments. "I have played basketball for ten years" "I have played basketball since I was ten"

present perfect or past simple?

we often use expressions like : recently., just, already, yet, ever, never

we use the PRESENT PERFECT to talk about past experiences and recent past actions when we don't specify a time.

we use the PAST SIMPLE to talk or ask about finished actions in the past, when the time is mentioned or understood

we often use past time expressions: yesterday, last week, two hours ago

WE SAY: "They have moved to a bigger house" "They moved last month to a bigger house"