一、由“providing（that）/ provided（that）/ suppose（that）/supposing（that）”引导的虚拟条件从句，动词多用过去式，表示如果⋯⋯，假如⋯⋯。虚拟语气强调的是和某个与既成事实不一致的假设。如：
1、Providing you had the opportunity to go abroad，where would you go？
如果你有机会出国，你最想去哪里?
2、Suppose/supposing that it rained, we shouldn’t go out.
假如下雨，我们就不出去了。
二、由“providing（that）/provided（that） /suppose（that）/supposing（that）”引导的条件从句根据情况，可以用虚拟语气，也可以用陈述语气，用一般现在时代替一般将来时。例：
1、I'll go provided that my expenses are paid.
如果我的费用有人代付,我就去。
2、I'll come provided( that) I were well enough.
只要我身体好,一定来。
3、To accept provided that certain condition applies.
如果某种条件满足就可接受。
扩展资料：
虽然 providing 和 provided 形式上为动词provide的现在分词和过去分词，但它们均可用作连词，引导条件状语从句，其意为“只要”（=as long as）、“如果”（=if）等。如：
1、 Providing [Provided] you clear your desk by this evening, you can have tomorrow off.
只要你到今晚把案头上的工作做完，你明天就可以休息。
2、 Providing [Providing] you promise not to tell anyone else. I’11 explain the secret.
只要你保证不告诉任何人，我就把这个秘密讲给你听。
3、Provided [Providing] that you keep quiet, you can come to the concert.
只要你保持安静，你就可以去听音乐会。
4、Providing there is no opposition, we shall hold the meeting here.
如果没人反对我们将在这里开会。
这类从句通常置于主句之前，但置于主句之后也是可能的。
如：
5、I will stay here provided [providing] the climate agrees with me.
如果这里的气候合适的话，我就待下来。
6、You can borrow my bike providing [provided] you bring it back.
你可以借我的自行车，只要你还给我。
如：I suppose that you are right. 我想你是对的。You can suppose that A equals B. 你可以假定A等于B。2。本回答被网友采纳