Alternatively, if this is contracted to "I've got to go [to school]," I would categorize this much like the first statement (neutral). "I gotta move to a bigger house." I mostly hear "I have got to go to school." I don't hear this in American English. "I've got to go now" sounds fine and is more common in the UK. I have rarely if ever heard someone say "I got to go" when they mean "I must go" or "I have to go". Search i've got to go now ; i gotta go now and thousands of other words in English Cobuild dictionary from Reverso. Learn more. "I have to go now" is also fine and means the same thing, but it is less common. In casual English, "got to" can be written as "gotta" and pronounced as "godda Often said at a quick pace and often accompanied by a rolling of the eyes. – Canis Lupus Mar 25 '13 at 14:47 "I got to go" is the past tense of "I get to go", where get is "to succeed, become enabled, or be permitted." If you want to say this with proper grammar, the equivalent would be, 'I have got to' or 'I've got to'. Consider jumping off the next cliff you see. With this emphasis, I would assume a bit more urgency about the situation. In the spoken form, 'got to' is shortened to 'gotta' and the word 'have' is dropped. I've definition: 1. short form of I have: 2. added to verbs to form adjectives meaning showing the ability to…. The one that sounds uneducated is "I got to go now". If you leave out "have" or " 've", it is ungrammatical and wrong.|@sarahcat こんにちは I agree with Lachie and OldGeezer. A term used by people when in extremely awkward or un-wanted situations. "I got to go school." Here are some examples: "I gotta manage my money." "I gotta obey the laws." If you have "Gotta go" said to you by someone else you have probably just made a fool of yourself. I've got to (do something) When you really want to do something and feel like you can't wait any longer, you say "I've got to ___": I've got to get an iPad. (spoken emphasis on "got"). It is a short response which actually has paragraphs of meaning behind it. Have got to and have to - English Grammar Today - a reference to written and spoken English grammar and usage - Cambridge Dictionary This is pronounced with stress on the word "got". But I have heard "I gotta go" (common colloquial) and "I gots to go" (street slang) to mean "I must go".