In Present tenses^x, Clauses^x, Adverbs^x

Velimir:Sorry I did not understand your question. Here are some comments on the verb tenses in your sentences1a) Whenever you've sent us your goods, we have received your documents related to the delivery when the truck has already set off . you've sent: You have sent is present...

Welkins2139 wrote: " if clauses " ( also called adverb clause of condition) present possible condition. The main clause express results. 1. If you study in a foreign country, what do you need to do? a present tense, not a future tense, is used in an if clause, even though the verb in the...

Take a look at this sentence: The researchers discovered that people varied widely in their knowledge of public events. Here maybe 'people vary widely in their knowledge' is still true, but we can not use present tense but past tense with the main clause? It has sort of same situation with my...

" if clauses " ( also called adverb clause of condition) present possible condition. The main clause express results. 1. If you study in a foreign country, what do you need to do? a present tense, not a future tense, is used in an if clause, even though the verb in the " if " clause may...