Simple past. vs. Present perfect. (Structure of Simple past. (Affirmative…
Simple past. vs. Present perfect.
Is a blend of present and past.
The perfect present is used for actions that occurred in a non-concrete time before now.
For actions that happened in the past.
When we use the simple past we used to refer "when" happened something, so we use expressions like.
:often, sometimes, always.
A determinate time.
: last week, when I was a child, yesterday, six weeks ago...
An indeterminate time.
: the other day, ages ago, a long time ago...
The action can be recently or in the far past.
Structure of Simple past.
.Subject + Verb (ed).
: Subject + did not + verb.
: Did + subject + verb + ?
: Did not + subject + verb + ?
Structure of Present perfect.
: Subject + Auxiliar Verb (to have) + past participle
: Auxiliar verb (to have) + subject + past participle + ?
: Subject + Auxiliar Verb (to have) + not + past participle.
I have never flown in a plane.
I haven’t talked to Peter.
Have you talked to Peter?
I was in Japan last year
You didn't walk
They walked to my house.
Did he walk?