dulce- quote explanations

• "knock-kneed coughing like hags, we cursed through sludge"

  described with a simile, seems old and weak even though they're young soldiers. verb "cursed" shows their anger and frustration
• "men marched asleep"

  metaphor shows how utterly exhausted they are. no rest- war is relentless
• "gas! gas! quick boys!"

  exclamation marks show panic. traumatic event for Owen. the panic emphasises their youth
• "he plunges at me, guttering, choking, drowning"

  list of 3. repetition of 'ing' (present participle) suggests how slowly and painfully he dies. present tense suggests Owen keeps reliving the memory
• "wagon that we flung him in"

  little time to deal with the deaths/grief. treating him as if he's already dead. death was normalised and people were desensitised to it
• "my friend you would not tell with such high zest" "the old lie.."

  direct address to gov and pro war people. sarcastic tone. pronoun 'you' directly address readers as a nation o make you feel sympathy. "the old lie" implies there is no glory in dying