JMNT(i)
19 Consequently, Jesus said to them, "Is it now possible for the sons of the wedding hall (= the bridegroom's friends and guests) to be fasting in the [situation] in which (or: = while) the bridegroom continues being with them? No, they continue unable to start or to continue fasting (or: there can be no fasting) so long as (or: for whatever time) they continue having the bridegroom with them!