9B Grammar o.o

IF + SJ + PAST SIMPLE + C

Hypothetical Scenario

SJ + WOULD + INFINITIVE + C

Hypothetical Consequence

vTo indicate the starting point of an action or event. It specifies the point in time when something began.

vCommonly used with a specific time or date, or a point in the past.

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Present Perfect + Since

vTo indicate the duration or length of time that an action or event has continued.

vCommonly used with a specific period or length of time, such as hours, days, months, or years.

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Present Perfect + For

What's its use?

vWhen the information about the moment in which an action happened is irrelevant.

I have tried sushi

v To talk about an unfinished period of time, from the past until now.

How long have you studied English?

I have studied English for 8 years.

I have studied English since 2015.

What's its use?

vAlready FINISHED and past actions.

When did she go to the concert?
She went to the concert last night.

She didn’t go to the concert last week.

https://www.youtube.com/watch?v=Dkln8PfE1xE