present perfect

Thursday 13 April 2023

Present Perfect vs Simple Past

1

PRESENT PERFECTPRESENT PERFECTPRESENT PERFECTPRESENT PERFECT

PAST SIMPLEPAST SIMPLE



2

UseWe only know that the action

happened at some time before now

We use this tense to talk about past events and activities with results /consequences in the present



3

AFFIRMATIVE sentences

I/you/ we/they HAVE LOST the keyHe/she/it HAS LOST the key

Here we are not thinking about the past action. We are thinking of the present result of the action. I don't have the key now



4

Negative sentences

I/you/ we/they HAVEN’T LOST the key

He/she/it HASN’T LOST the key



5

SHORT QUESTIONS

HAVE I/you/we/they LOST the key? Yes, I/you/we / they HAVE No, I /you/ we they HAVEN’THAS he/she/it LOST the key? Yes, he/she/ it HAS No, he/she/it HASN´TWhat has he done? He has lost the key



6

Time adverbials

• We use NEVER and YET in NEGATIVE sentences

• We use ALREADY in AFFIRMATIVE sentences

• We use YET and EVER in QUESTIONS



7

REMEMBER

o YET: at the end (- / ?)

o ALREADY (+) /EVER (?) /NEVER (-) before the main verb

o FOR AND SINCE



8

For FOR + period of time.

Example: 1- for ages 2- for a long time 3- for two years 4- for the last week



9

Since • SINCE + point in timeExample: 1- since June 2- since I was a child 3- since Monday 4- since last week



10

Simple pastWe know exactly when the thing

happened

We use this tense to talk about an action which started and finished in the past



11

Affirmative and Negative Sentences

o I LOST the key yesterday (+)o I PLAYED football yesterday

o I DIDN´T LOSE the key yesterday (-)



12

QUESTIONSDID YOU LOSE the key yesterday? Yes, I DID No, I DIDN’T. I LOST my pencil

caseWHAT DID you do yesterday? I lost my key



13

TIME REFERENCE YESTERDAY (morning, afternoon,

evening) LAST night/ month Two hours AGO FROM (1995) TO (1998)

present perfect

Education