I wonder what the difference is between the following two sentences
1. I want to go if I may.
2. I want to go if I might.
Your guidance is highly appreciated.
When you use ‘if’ to introduce a clause, it becomes a conditional sentence. There are three types of conditional sentences. In each cases the tense used in the main clause as well as the if clause follow certain rules. I'll clean the bathroomif you clean the lounge.(main clause-will future, if clause-simple present) If it's sunny, we'll go to the park. (if clause first- simple present, main clause - will future)
The if clauses in the example sentences are not complete clauses, besides use of modal verbs may and might are rarely used in a if clause.