Often had I intended to speak of it.是什么意思？

Often had I intended to speak of it.

我常想说说这件事。

often

adv. 常常，经常，时常，再三；

例句
Genetic abnormalities are more often associated with faults in paternal DNA than in maternal DNA.
相对于母本DNA,基因畸变往往更多地与父本DNA上的缺陷相关。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

intended

adj. 有意的，预期的；n. 已订婚者；v. 打算(intend的过去式和过去分词)，意指；

例句
The defences are intended to obstruct any advance by tanks and other vehicles.
这些防御工事用于阻止坦克等车辆前进。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

speak

vt.& vi. 讲，谈，演说，从某种观点来说；

例句
Do you speak any foreign languages?...
你会说外语吗？

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

it

pron. 它，他，正好是所需的，事实[情况]；n. <美俚>傻瓜，笨蛋，<俚>绝妙的人，理想的东西，登峰造极；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。