My question is as follows: is it grammatically correct - I would like to be referred to reliable sources - to contract such like subjects and the main or auxiliary have:
My brother and I have got a lot of toys.
My Mum and I have been to Greece twice.
Is there any rule that advises us to contract or not contract in the above instances?
And is there any rule of thumb at all that helps us to use contraction properly with proper names? E.g.:
Peter and Pavel have graduated from university.