Which sentence is correct?
“Task A is complete.” or “Task A is completed.”
The word complete is both an adjective and a transitive verb.
As an adjective, complete means fully constituted of all of its parts or steps, fully carried out, or thorough.
- The road construction is finally complete.
- Mary is planning a complete renovation of her kitchen.
- The system will reboot after the installation is complete.
As a transitive verb, complete means to bring to an end or a perfected status.
- By 28 he completed his education and became an official, worked in different provincial courts.
- She completed her work.
- They completed the work in 3 days.
Therefore, something is complete, or something has been or was completed.
Therefore, Task A is complete (adjective), or Task A was completed (past tense verb).
Task A “is completed” is wrong, although “is being completed” or “is going to be completed” are proper verb forms.