after i read the usage , i still dont really get it .
can you explain it to me in details ,
i have finished my work .
i had finished my work.
i finished my work .
in the examples above , i kinda know the meaning and usage in "i had finished the work" .
but i really dont in the first and last .
i have finished means "i just finished " ?? = i finished ?
i have finished = i finished ?