I Reckon it is Suppose - A way to say 'I guess' that sounds like you're talking to a

A way to say 'I guess' that sounds like you're talking to a cow and you're mad.

I Reckon it is Suppose I'm gonna lose this bet.

I Reckon it is Suppose I'll finally clean my room.

I Reckon it is Suppose I'll stop eating ice cream for breakfast.