Positive: Subject + has/have + Verb3 + Object
Negative: Subject + has’t/haven’t + Verb3 + Object
Question: (Has/Have + Subject + Verb3 + Object)?
Positive Negative Question I have worked I have not worked Have I worked You have worked You have not worked Have you worked She has worked She has not worked Has he worked? He has worked He has not worked Has she worked? It has worked It has not worked Has it worked? We have worked We have not worked Have we worked? You have worked You have not worked Have you worked? They have worked They have not worked Have they worked?
‘ve = have
‘s = has
have’t = have not
hasn’t = has not
NOTE: Some verbs ar regular; other verbs are irregular.
The past participle of regular verbs ends in -ed
Example: Work ⇢ worked live ⇢ lived
When we add -ed to verbs, there are sometimes changes in spelling.
Irregular verbs have different past participle forms.
Example: go ⇢ gone do ⇢ done
** Past participle form of a verb is the third form (Verb3) of a verb.
Present Perfect Tense Example
- UNFINISHED PAST: The Present Perfect is used to express an action or state which began in the past and continues up to the present.
⇢ She has worked in Barcelona for five months. (She still works in Barcelona now.)
⇢ Julia and John have been married for 25 years. (They are still married now)
2. EXPERIENCE: The Present Perfect Tense is used to express an action which happened in the past and is finished, but we are not interested in when. We are interested in the experience as part of someone’s life.
⇢ Have you ever had an accident?
⇢ Have you ever been to Barcelona?
⇢ I’ ve seen Donald Trump once.
** If the time is stated, if more details are given, the tense changes to the Past Simple and the Past Continuons.
⇢ A: Have you ever seen an lion?
B: Yes, I have.
⇢ A: When did you see it?
B: Last month, in London zoo.
3. PRESENT RESULT: We also use the present perfect when the result of a past action is connected to the present.
⇢ Someone has broken the window. (The window is broken.)
⇢ We’ ve cleaned the flat. ( The flat is now clean.)
⇢ They taxi has arrived. ( The taxi is now here.)
4. We often use the Present Perfect Tense in this way to announce news.
⇢ My sister has grown a beard.
⇢ I’ ve found a new job.
⇢ Have you heard? Mary has had a baby girl.