This question is related to these two posts (please read those answers too):
"Get to do something"
What is difference between GOT TO and HAVE TO
For example: "I got to spend time with my wife."
Does that sentence mean "I had the opportunity of spending time with my wife."? Or does it mean "Now I have to spend time with my wife."?
From what I know, I think it can be interpreted in two different ways, giving place to misunderstandings.
How do we avoid misunderstandings while using "get to" and "got to"? How can we use them correctly in American English? (A British English point of view would be welcome too.)
Edit: My title had some words in the wrong place, which gave it a very different meaning. My real question is about the difference between "get to" and "got to".
Best Answer
The have to meaning, especially when got is not preceded by have, is typically used in spoken speech in very informal contexts (if it appears in writing, it is normally just a transcription of something spoken). In such spoken contexts, this got to is typically pronounced as gotta, and in writing it is often transcribed as such (see e.g. here). Thus, in spoken language, the two senses of got to are usually pronounced differently and so there is normally no confusion.
If the pronunciation is atypical, or if the transcription does not use the 'pronunciation spelling' gotta, then there are indeed sentences like I got to spend time with my wife which, when considered in isolation, are ambiguous.
But again, in practice, the context normally makes it quite clear which meaning is meant.
One clear difference is that in the have to meaning, got to can be used in the present tense, whereas in the other meaning, it is understood to be in the past tense.
CGEL says that gotta is a morphological compound (p. 1617), whereby
(There are six other compounds like that: going + to → gonna, have + to → hafta, ought + to → oughta, supposed + to → supposta, used + to → usta, want + to → wanna.)
CGEL further says this about these seven compounds: