对某事有信心英文

都可以！1.Im confident of success/I have confidence in gaining successs.2.I'm pretty confident that you can do this thing well.3.I'm worried about his capability of completing the task.4.Leave it to him, I'm not worried at all/ I'm quite worried.5.I suggest that you stay at home these days, try not to go anywhere.Especially places crowded with people.希望对你有帮助！ :D

be sure that一般位于句首，表示“务必......”或“确保......”be sure of sth “坚信....” “对....的肯定”be sure to do “肯定....”“一定会... ”

I have full confidence on this matter.

be sure that1.确信，对…有把握2.确信3.确信的，有把握的4.肯定某事be sure (that)1.宾语从句，意为“确信……”。如be sure that sth1.对做某事有信心and always be sure that1.而且也一直确信and would i be sure that1.我还会确信