Dear Miriam,
Is my analysis correct ?
1) "My sister, my husband and I went dancing last Saturday."
a) My sister, my husband and I = subject
b) went dancing = verb ?
c) last Saturday = adverbial of time
2) "He has been sneezing and coughing all morning."
a) He = subject
b) has been sneezing and coughing = verb
c) all morning = adverbial of time
See you,
Hela