he is rich, he will buy ten houses i'm not rich if i were rich, i would buy ten houses hmm, so wood is just will plus if it's not real, so we use wood and past tense tomorrow, i will go to the bank yesterday, i said i would go to the bank today, but i'm lazy hmm, so wood is just will in the past i didn't go to the bank today, so i use wood but tomorrow i definitely will so i'll use wood i didn't go to the bank today, but if i did go i would have seen that i have no money hmm, so wood is just will plus if and the past so if it's real or will definitely happen i should use will, but if it's not real and didn't happen i use wood there you go。