Well, it's true that you don't need the word If to make conditionals, but you do need a conditional clause along with the main clause, or it won't make much sense.
确实,你不需要用 If 这个词来造条件,但是,你确实需要在主上附加一个条件,否则它就没有多大意义了。
So I'm imagining a situation and in this type of sentence, use the past simple tense in the conditional clause and then should, would, might, could plus your verb in the main clause.
We use the present simple verb in our 'if' clause and we use the future tense 'will' in our main clause so we use 'will' along with a bare infinitive verb.
Make sure to review your complex sentence structures and understand the position positioning of the main clause and the subordinate clause, also known as the dependent and independent clause.