Usages of musuko
息子 は 結婚して います。musuko wa kekkonshite imasu.
(My) son is married.
Note how the present continuous is used here to indicate on ongoing state, instead of an action in progress.
(お)息子さん は (お)元気 です か。(o)musukosan wa (o)genki desu ka.
Is your son well?
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