ensure 1.说“保险”现在用insure，不用ensure，说“保証”用insure远不及用ensure普通。 2.ensure（保証）后面的以that引导的从句里所说的事，假使是一……
ensure
1.说“保险”现在用insure，不用ensure，说“保証”用insure远不及用ensure普通。
2.ensure（保証）后面的以that引导的从句里所说的事，假使是一次的，用shall或should比用will或would普通，所说的事假使是经常的，用shall或should也比用will或would普通，但往往不用shall或will而用属于现在时态的动词，不用should或would而用属于过去时态的动词。例如：
I can ensure that they shal!(偶尔用will)come tomorrow.
I said I could ensure that they should(偶尔用 would)come the next day.
We must take steps to ensure that these rules shall be(或are,或will be) faithfully carried out.
We took steps to ensure that these rules should be(或were,或would be)faithfully carried out.
3.参见assure 3