1.   But, of course, that is precisely what one is still trying to find out - what the words are.

2.   Chester was still trying to persuade the Committee that there was no urgency about reducing sulphur emissions.

3.   Companies aide still trying to find how best to describe these new work arrangements for people.

4.   Detectives are still trying to build up a picture of what happened.

5.   Detectives are still trying to work out what happened.

6.   Doug Lenat, the last of the old-school AI researchers, is still trying.

7.   Engineers are still trying to steer the craft into the correct path.

8.   Fire officers are still trying to discover the cause of the fire.

9.   He confirmed officers were still trying to ascertain what had been taken.