You try to look at the past and use it to build for the future.

I tried using C some years ago without much success.

She tried using both hands, but it didn't help much.

That was around four years ago; now, of course, I don't even try using the room phone.

I tried using paper ones once, but that didn't work.

"All the more reason not to try using it today."

She tried to focus on her danger and use it.

This of course takes several hours, so the end result is that I had to wait until the next day to actually try using it.

She had tried using Tom as a model, but that proved too hard.

I tried to force all emotion from my mind and use reason.