present prefect

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hooshdar3

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Hello.
"If you have moved your king, you can'y castle".That's what GM Seirawan says.

1)What tense is he refering to in his If-clause?
2)Why doesn't he say:"if you move your king you cannot castle"?, refering to a future tense?
 

bhaisahab

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Hello.
"If you have moved your king, you can't castle".That's what GM Seirawan says.

1)What tense is he referring to in his If-clause?
2)Why doesn't he say:"if you move your king you cannot castle"?, refering to a future tense?
1) Look at the title of your post.
2) Because he chose to write it that way.
 

5jj

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2)Why doesn't he say:"if you move your king you cannot castle"?, refering to a future tense?
There is no future tense involved in either 'if you have moved' or 'if you move'. In fact, English has no future tense.

When we refer to future time in an if-clause, it is inappropriate to use will with the meaning of certainty in a situation in which there is uncertainty. We therefore use an unmarked (present) tense form, simple, progressive or perfect.
 

hooshdar3

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There is no future tense involved in either 'if you have moved' or 'if you move'. In fact, English has no future tense.

When we refer to future time in an if-clause, it is inappropriate to use will with the meaning of certainty in a situation in which there is uncertainty. We therefore use an unmarked (present) tense form, simple, progressive or perfect.

So it has the same meaning as if he said "If you move your king, you will not be able to castle"?
We have studied only 3 conditionals in school!
 
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