Have you ever been in a relationship (engaged, married, or steady cohabitation)?

Have you been in any kind of (romantic) relationships?

Did you ever have a partner/Spouse?

Have you ever had a girlfriend?

Do you have a stable partner? By partner we mean boyfriend, girlfriend, or spouse

What is your currently relationship status [with a wife, girlfriend, or partner]?

What is your current marital or civil status?

What is your marital status?

Have you ever been married?

How old is your partner?