The phrase "assert with confidence that" is correct and usable in written English.
You can use it when you want to express a strong belief or claim about something, emphasizing certainty in your statement.
Example: "I can assert with confidence that our new marketing strategy will lead to increased sales."
Alternatives: "state firmly that" or "declare with certainty that".
Because the number of samples analyzed is not exhaustive, we cannot assert with confidence that the two main amoA phylotypes found in BSCs in this study represent crust-specific lineages, although this remains a possibility to be explored further.
The studies included in this review enable us to assert with confidence that drug trafficking networks tend to spread from a relatively dense core in short chain-like structures.
It should not resume collections until it can assert with confidence that its bills are accurate and its system under control.
It is not obvious that the people elected since 1972 have been worse than those before, but at the very least I can assert with confidence that they haven't been better.
For these neurons, we can assert with confidence that the neuron is more sensitive to retinotopic (below the diagonal) or spatial (above the diagonal) modulation.
In October 2006 Gordon Brown, then chancellor of the exchequer, asserted with confidence that "many charities and donors have been and are being exploited by terrorists".
But in asserting with confidence that the Christian God and the Muslim God are actually different beings--let alone that one is "true" and the other "false --the asserters run into that obvious statement above.
What we can assert with confidence, however, is that the introduction of choice and competition, as well as the other post-2000 govereformsreforms, did not lead to the inequitable distribution of waiting times across socioeconomic groups that many people had predicted.
Nevertheless, we can assert with confidence, after a given lighting, that if the match had not been struck, it wouldn't have lit.
"Some fear to go to bed, expecting an Earthquake; some declare that [the sun] neither rises nor sets where he did, and assert with great confidence that the day of judgment is at hand," wrote an English poet, William Cowper.
This is not to assert with much confidence that McGwire and Palmeiro would not have been elected to the Hall of Fame on the basis of just their stats.
