We use the future more when talking about a particular. One problem happens, whenever i go to market. I assume that what you're talking about is what always happens, in which case you need the present tense: If wanted is used with happens, then the verbs in the sentence are mixing tenses in a way that's somewhat unusual. As it happens 和 it happens that…都可以表示“碰巧”，它们在意思上没什么区别，在用法上，as it happens 可用于句首或句末。如： as it happens, i have my notebook with me. It's not necessarily wrong in the right context, but looking. What happens when you drop a lighted match into a can of petrol? And therefore do changes to does if only one leaf is involved.
What Happens When You Drop A Lighted Match Into A Can Of Petrol?
And therefore do changes to does if only one leaf is involved. We have the verb do. The leaves/leaf carry the action of the verb do, and are therefore the subject.
As It Happens 和 It Happens That…都可以表示“碰巧”，它们在意思上没什么区别，在用法上，As It Happens 可用于句首或句末。如： As It Happens, I Have My Notebook With Me.
If wanted is used with happens, then the verbs in the sentence are mixing tenses in a way that's somewhat unusual. Everything in life, even events that seem insignificant when they occur, happens/happen for a reason. But your text needs a full stop rather than a.
Arise Or Come Up Or Occur Would Be Better.
In this case, what is referred to only one thing, sigular.
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Should I Use Happen Or Happens In The Following Sentence
As it happens 和 it happens that…都可以表示“碰巧”，它们在意思上没什么区别，在用法上，as it happens 可用于句首或句末。如： as it happens, i have my notebook with me. With the third person singular of present tense the verb must be in plural form. I assume that what you're talking about is what always happens, in which case you need the present tense:
We Use The Future More When Talking About A Particular.
It's not necessarily wrong in the right context, but looking. What happens if/when you mix oil and water? Arise or come up or occur would be better.
We Have The Verb Do.
One problem happens, whenever i go to market. But your text needs a full stop rather than a. And therefore do changes to does if only one leaf is involved.
What Happens When You Drop A Lighted Match Into A Can Of Petrol?
The leaves/leaf carry the action of the verb do, and are therefore the subject. In this case, what is referred to only one thing, sigular. 用一般现在时的happens和习惯没关系。用一般现在时是解释这样一个事实。 let's see what happens next week.
If Wanted Is Used With Happens, Then The Verbs In The Sentence Are Mixing Tenses In A Way That's Somewhat Unusual.
Everything in life, even events that seem insignificant when they occur, happens/happen for a reason. What happens is fine but perhaps using the present tense sounds a bit colloquial when you're talking about the future. However, as vickyace tells you, we do not ordinarily use happen with problem ;
