English · B1 · verb · 5 minutes
Do: present perfect
Use have/has done for completed work with current relevance or accumulated experience.
Understand the choice
Present-perfect do is useful for result questions and progress checks: what has been completed, how much, and what consequence follows now.
Core rule: Do forms did in past simple and done as participle; have/has done connects the completed action to now.
Notice it in context
I have done the urgent tasks, so we can leave.
He hecho las tareas urgentes, así que podemos irnos.
Have done reports present completion; so introduces the practical result.
How much research have they done so far?
What amount of research is complete up to this point?
Have inverts; done stays participle; so far reaches now.
She has already done the washing-up.
The dish-cleaning task is complete earlier than expected.
Already sits between auxiliary and participle.
What to remember
- Done is not an independent standard past tense: I did it, not I done it.
- Do research, do work, and do a task are common collocations.
Common trap: Do not place already before the auxiliary in a neutral statement unless emphasizing contrast.