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If & time clauses


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If & time clauses

  1. 1. IF CLAUSE (I)If + present simple , Main Clause (Future Simple)(เหตุ - เงือนไขทีตงไว) ่ ่ ั้ (ผลทีจะเกิดขึน หากเงือนไขทีตงไวเกิดขึน) ่ ้ ่ ่ ั้ ้ If + (S + V1+s/es) , S + will + Vinf S + won’t + Vinf won’ If + S don’t / doesn’t + Vinf don’ doesn’ If it rains, we won’t go out anywhere. s won’ = We won’t go out anywhere if it rains. won’ s If it doesn’t rain,, we will go to the park. doesn’ = We will go to the park if it doesn’t rain. doesn’ *ถา if clause อยูกลางประโยค ตองใช if และไมมี comma (,)
  2. 2. TIME CLAUSETime clause Main Clauseประโยคบอกเวลา วาเหตุการณใน Main เหตุการณทจะเกิดขึน ตามกําหนดเวลาของ ี่ ้Clause จะเกิดขึนเมือไหร ้ ่ Time clause Time clause Main clause When (เมื่อ) Before (กอน) After (หลัง) + PRESENT SIMPLE , S + will + Vinf As soon as (S + V1+s/es) (ทันทีที่) Until จนกระทั่ง
  3. 3. TIME CLAUSEWhen it stops raining,, we will go for a swim. s= We will go for a swim when it stops raining. sBefore we go swimming,, we will buy swimming suits.= we will buy swimming suits before we go swimming.After we buy the swimming suits,, we will go for a swim.= We will go for a swim after we buy the swimming suits.As soon as it stops raining,, we will go out s out.= We will go out as soon as it stops raining. sUntil my sister finishes her work,, we won’’t go out anywhere. es won= We won’t go out anywhere until my sister finishes her work. won’ es