test

I always wonder which verb is most appropriate for "a test".

We conducted a performance test.
We performed a performance test.
We did a performance test.
... etc.

Thanks.

We have tested

All of those, but "we have tested" where test is a verb, can't be used for describing that procedure.

"a performance test" or "a test" would need be a part of your sentence.

Thank you, nic and Might Mick! Let me confirm once again. So, I should avoid using the three sentences I posted and instead say "We tested the performance of ...". Is this right?

yuh,
The ones you stated are all fine.

If explicitly describing a procedure:
- We conducted a performance test.
- We performed a performance test.
- We did a performance test.

But if it's not necessarily a specific procedure then:
- We tested the performance of ...

Obviously the following are the most impressive:
- We conducted a performance test.
- We performed a performance test.

"We performed a performance test." isn't too impressive because it's too repetitive. People tend not to be impressed by an apparent lack of vocabulary.

True.

Can't we say for example : "We have tested the computer's performances?"

Yes to: "We have tested the computer's performance" (no S).

But again, as I said before, if he's writing a report on "The Test" he should use "a performance test" or "the performance test" in a sentence.

"I checked it out...it didn't work so I smashed it with a hammer!"

ooops sorry! I meant to say: Nic, I think that is fine, except I would delete the final S from performances. That is more appropriate I think. The PC doesn't really have separate "performances"....just one overall function, a performance test. No doubt someone will now disagree with that...that's what makes this forums such funs! sorry...fun. :-)

Many thanks guys