When to use is obtained/was obtained?

Can anyone pls advise me when to use is/was obtained?

When you speak about obtaining something in the present or past tense.

Hi,

it is in the past and still continuing. I have read before, there are people that wrote... is obtained? I am confuse when should I use... is obtained and was obtained cause what am I trying to say ...happened in the past?

Thanks.

minn said:

it is in the past and still continuing.

Click to expand...

Should the present perfect, has been obtained, be used?

Give an example sentence. We can't possibly help you otherwise.

Matthew Wai said:

Should the present perfect, has been obtained, be used?

Click to expand...

Possibly- there's no context here to say.

Hi,

Example of the sentences are..." The technique for obtaining data for the study are obtained from the ..." and " A quantitative research approach is used to examine therelationship among the variables." Is this correct?

Or should I used were obtained and was used???

Thanks.

The second is fine. The first should be singular, and the past makes more sense to me.

Tdol said:

The second if fine. The first should be singular, and the past makes more sense to me.

Click to expand...

Why can't I use was used???
I don't really understand when you comment on the first sentence. Is it ...is obtained??? Why I can't I use was obtained, instead of is obtained???

I am confused when should I used was/were + past tense and is/are + past tense???


Pls Advise me!!!

You are confusing past tense and the third form of the verb, which is used to make the passive.

The technique is obtained - you get it over and over again.
The technique was obtained - you got it once in the past. You don't continually obtain something.

Often in describing a study, the present tense is used to describe the approach.

Thanks for your explanation. Now I understand. Thank you everyone!!!