Student or Learner
I like to check,
1) The father, together with his two year old son , is building a sandcastle.
2) The two girls , together with their brother, is or are coming with us.
I have read
When a singular subject is joined to other subjects using "together with " , singular verb is used.
no. 1) correct
no. 2) is or are ? as it start with "The two girls"
two girls... are