If the condition uses the present tense, then the consequence will use the present tense to refer to a certain situation. If the condition uses the present tense, then the consequence will use modal verbs like will, can, may, or must followed by a verb to refer to a possible situation. If the condition uses the past simple tense, then the consequence will use modal verbs like would, could, or might followed by a verb to refer to a hypothetical past situation. If the condition uses the past perfect tense, then the consequence will use modal verbs like would, could, or might followed by have and the past participle to refer to a hypothetical situation in the past.

2.  Conditional this one says to a situation
that it is always real
If + present , present tense
If you freeze water , it turns in to ice

3.  It uses when a situation is royal or
possible
If +present tense , will/can/may/must+verb
If it rains today , I’ll stay at home

4.  It refers to a hypothetical situation
if + past simple , would/could/ migth+verb
If i won the lottery , I would travel around
the world

5.  It recounts to a hypothetical situation of
the past
If + past perfect tense , would/could/might
+ have + past participle
If I had won the lottery , I would have
traveled around the world