Perfekti ja pluskvamperfekti

Perfekti

Perfekti ilmaisee mitä joku on tehnyt tai mitä on tapahtunut.

Säännöllisistä verbeistä perfekti muodostetaan:
have tai has + verbi + ed -pääte
 esim. I have played football.
 esim. He has played football.

Epäsäännöllisistä verbeistä perfekti muodostetaan:
  have tai has + verbin 3. muoto (supiini)
 esim. You have seen a lion.
 esim. She has seen a lion.

MYÖNTEINEN LAUSE KIELTEINEN LAUSE KYSYMYSLAUSE
I have walked.
I have eaten.
I haven't walked.
I haven't eaten.
Have I walked?
Have I eaten
You have walked.
You have eaten.
You haven't walked.
You haven't eaten
Have you walked.
Have you eaten
He/she/it has walked.
He/she/it has eaten
He/she/it hasn't walked.
He/she/it hasn't eaten.
Has he/she/it walked?
Has he/she/it eaten? 
     
We have walked.
We have eaten
We haven't walked.
We haven't eaten
Have we walked?
Have we eaten
You have walked.
You have eaten
You haven't walked.
You haven't eaten
Have you walked?
Have you eaten
They have walked.
They have eaten
They haven't walked.
They haven't eaten
Have they walked?
Have they eaten

Pluskvamperfekti.

Pluskvamperfekti ilmaisee, mitä joku oli tehnyt tai mitä oli tapahtunut.

Pluskvamperfektin muodostaminen eroaa perfektistä ainoastaan niin, että perfektissä käytettävien verbien have tai has sijasta käytetään verbiä had.
 
esim. I had walked tai She had played.

MYÖNTEINEN LAUSE KIELTEINEN LAUSE KYSYMYSLAUSE
I had walked.
I had eaten.
I hadn't walked.
I hadn't eaten.
Had I walked?
Had I eaten?

Pluskvamperfektissä verbit toimivat samalla tavalla riippumatta lauseen tekijästä. Toisin sanoen, pluskvamperfektilauseissa ei tarvitse välitää esim. yksikön kolmannesta persoonasta. Yllä olevan taulukon esimerkkilauseisiin voi vaihtaa tekijäksi ihan mitä vaan, eikä se muuta mitenkään verbimuotoja (esim. He had walked, He hadn't walked, Had he walked? jne).