Sentence examples for be obligatory from inspiring English sources

They seem to be obligatory.

Yeast seems to be obligatory – Rhodes and Smith use nothing else.

Every commentator declares this to be obligatory, yet none says how.

But while national stereotypes may be welcome in this arena, they don't seem to be obligatory.

For the most important benchmarks, reporting trades could be obligatory, officials say.

Where known to be present, this pattern seems to be obligatory.

But I have no doubt looking ahead, there will be obligatory registration".

It should be obligatory reading for all interested in what is happening beyond our shores.

Though you might not know it (and unlike some states in the US), HPV vaccination won't be obligatory.

Should it be obligatory (or forbidden) for universities to consider how students will use the degrees they earn?

For instance, in an urban show there would be obligatory clashes between the city's detectives and, say, the F.B.I.