efficient + to-infinitive

[kl004535]

Dear Teachers,

Is my sentence below correct ?

1. They are efficient to complete their tasks.

The adj is efficient, not effective which I wrote it wrongly in my previous thread.


Your guidance is highly appreaciated.

Thanks.

[Raymott]

Dear Teachers,

Is my sentence below correct ?

1. They are efficient to complete their tasks.

The adj is efficient, not effective which I wrote it wrongly in my previous thread.


Your guidance is highly appreaciated.

Thanks.

No, you also need "They are efficient in completing their tasks" for this one too.

[2006]

Dear Teachers,

Is my sentence below correct ?

1. They are efficient to complete their tasks.

Thanks.

I think your sentence above could work. Let me give you another example.

'They are smart to bring another set of clothes.' This means that the fact they brought extra clothes shows they (are)(were) smart.

So in your sentence, the fact that they completed their tasks in the allotted time shows that they are efficient.

The meaning/emphasis is different than that in Raymott's sentence.

[Eric Davis]

Dear Teachers,

Is my sentence below correct ?

1. They are efficient to complete their tasks.

The adj is efficient, not effective which I wrote it wrongly in my previous thread.


Your guidance is highly appreaciated.

Thanks.

I'm not a teacher, but I want to comment...

Modifying the adjective efficient, the infinitive to complete their tasks is serving as an adverb. It sounds strange to me, but I think it is correct.