"If you come closer, you'll be able to see the parade."
(the form we'll mainly be considering)"Unless you come closer you won't be able to see the parade."
(If you don't stand closer, you won't be able to see the parade)"Do you like it? It's yours!"
(If you like it, it's yours)"Come here and I'll give you a kiss."
(If you come here, I'll give you a kiss.)"Criticize him the slightest bit and he starts crying."
(If you criticize him the slightest bit, he starts crying.)"Get out of here or I'll call the police."
(If you don't get out of here I'll call the police.)"Anyone who does that deserves to be punished."
(If anyone does that, they deserve to be punished.)"With his hat on he would look older."
(If he had his hat on, he would look older.)"Otherwise, I wouldn't be here."
(If things were not the way they are, I wouldn't be here.)