英语翻译if作为连词,引导条件状语从句,它表示的意思是“假如”“如果”等.在复合句中如果主句用将来时,则if引导的状语从句用一般现在时.if引导时间状语从句,当if做“当”或“无论何时

Question

英语翻译
if作为连词,引导条件状语从句,它表示的意思是“假如”“如果”等.在复合句中如果主句用将来时,则if引导的状语从句用一般现在时.
if引导时间状语从句,当if做“当”或“无论何时”解而不含有条件之义时,if从句中的时态与主句中的时态相同.
用于虚拟语气中,if从句中用过去式,表示不可能实现,大概不会实现或提出作为考虑的假定条件.
if从句中用过去完成式,表示过去未实现的条件(例如由于不可能实现或某人之未能实行).

Answer 1

If as conjunctions,adverbial clauses of condition,it means "if " and " if ".In compound sentences if I would go,if adverbial clause with the present tense.If adverbial clauses of time,when the if" when " or " whenever" solution containing conditions without justice,if clauses tenses tenses in the same clause.For the subjunctive mood,the if clause in the past tense,not possible,probably not implemented or proposed as to consider assumptions.The if clause in the pluperfect,said that in the past did not achieve conditions (e.g.as impossible or someone had failed to execute ).