Aspect
A grammatical feature indicating how an action is experienced across time. Progressive aspect ('is walking') emphasises ongoing action; perfect aspect ('has walked') emphasises completed action with present relevance.
Real World
In live football commentary, Gary Neville might say 'Saka is running at the defence' (progressive aspect) to convey unfolding action, but in the post-match summary he switches to 'Saka has scored twice' (perfect aspect) to emphasise completed results.
Exam Focus
Always distinguish aspect from tense — state whether the writer foregrounds duration (progressive) or completion (perfect) and explain the effect.
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