like: thì phải
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
thì phải * ☊ 
(tag question expecting a positive answer), perhaps * ☊
[ thì ] : (1) time; (2) then, as for, however, in that case, certainly, for sure
[ phải ] : (1) correct, right (opposite of left), right (opposite of wrong); (2) must, have to
[ phải ] : have to
[ phải ] : ought
[ phải ] : shall