Tenses after “when,” “if,” “before,” “after,” and “as soon as”

What tenses should I use after these adverbs, Present Simple or Present Perfect? Is it possible to use the Future Simple?


Present perfect conveys a sense of the end of the action, whereas present simple conveys a sense of the beginning or middle. For example,

As soon as I have eaten, I will help you with that.

As soon as I eat, my stomach starts grumbling.

The first sentence refers to once the eating is done, but the second sentence refers to when the eating starts. Simple future is never used here.

Source : Link , Question Author : Artem Merkotun , Answer Author : Jakob Weisblat

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