He tried to shout at the figures, but nothing came out.

First time I tried to shout, it felt like the top of my head was coming off.

He tried to shout and couldn't remember how to open his mouth.

There was no longer any point in even trying to shout.

He tried to shout to attract attention, but his voice would not work.

I tried to shout, but could not do so for want of breath.

He's trying to shout something but you can't tell what it is.

He tried to shout something, but his voice wouldn't work.

I tried to shout his name, but the air was too thick.

He was trying to shout a dozen things at once.