Sentence examples for that is a formidable from inspiring English sources

For the Colombian military, that is a formidable challenge.

For creatures desiring to eat the conch, that is a formidable fortress to breach.

That is a formidable to-do list and frankly, Ed may not be up to it.

That is a formidable challenge because insulin is needed to maintain normal blood sugar.

That is a formidable comparison for anyone, but Mr. Zuiker at this point has little reason for self-doubt.

That is a formidable task in Africa where the overwhelming majority of women breast-feed their infants for long periods.

Working on a Sunday, that's a formidable foe, let me tell you," said Cravalho with a laugh.

That was a formidable problem.

That's a formidable obstacle for a critic.

That's a formidable coalition tailor-made for victory in a November general election.

But that's a formidable task with only the Guardian, Mirror and FT to redress that gross imbalance.