complete

[Unregistered]

Which is correct, with ''-d'' or not?



Mission is complete
Mission is completed


I think it is with -d because this example,

This is finished(ok)

This is finish (wrong)

[Raymott]

Which is correct, with ''-d'' or not?



Mission is complete "Complete" is an adjective here.
Mission is completed "Completed" is the past participle, in a passive structure.
Both of these are correct, but they are grammatically different.

Compare:
The window is open
The window is opened.

I think it is with -d because this example,

This is finished(ok)
There's only one form for the two grammatical purposes here.
Compare:
The windows is closed - same form for both

This is finish (wrong)

R.