How to Use "Certain" with Example Sentences

certain (adj): being sure about something; particular

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Used with verbs:

"He is certain there is no danger."
(be: is/am/are)

"She looks certain about the outcome."
(looks, seems, sounds)

"I became more certain about my decision as time passed."
(became, grew)

"This information has made me certain of what to do."
(made me)

Used with adverbs:

"Success is very certain."
(very, absolutely, quite, almost, fairly, pretty, reasonably)

"This is by no means certain."
(by no means)

Used with prepositions:

"Are you certain about this?"
(about, of)