Dave's ESL Cafe's Student Discussion Forums

[river1974]

Dear teachers:

Even though the employment of the speech recognition as the input interface is more natural for the user, there are still many problems to be solved, however.

In the above sentence, if I put "waited" before "to be solved", i.e. ..., there are still many problems waited to be solved, would the meaning be changed? Thanks.

[asterix]

You can put waiting to be solved but not waited.
The meaning would not be changed.

I think you can improve the sentence by shortening it as follows:

Although speech recognition as the input interface is more natural for the user, there are still many problems to be solved.

[river1974]

Thank you, asterix. Your revision is really clearer to read!