Have never, and will never, …

I'm closing the festive season with a pet hate and a picture of Father Christmas:

Link: Jake Wallis Simons, 'I don't want my kids to believe in Father Christmas'

Ignoring the unnecessary and meaningless 'OK', the first sentence proper consists of a main clause interrupted by a second clause. The former relates to the past, the latter to the future, and they are related to each other through the main verb, encourage. However, even though both the syntax and the punctuation show that the second clause is subordinate to the first, it has been allowed to dictate the form of the main verb. This means that the bare infinitive, encourage, also has to stand in for the present perfect form, encouraged, with the result that the main clause is ungrammatical: 'I have never encourage my children…' 

The meaning is clear, but that doesn't make it a) right, b) elegant, or even c) most effective in making the point. (It's the sort of thing that makes me stop reading instantly, since a) the writer obviously lacks professionalism: he has so little respect for the reader and for himself that he can't be bothered making the effort to type one additional word to make his sentence correct; and b) the piece is likely to be littered with such irritations, so instead of fulfilling its potential as a pleasant and/or interesting piece of leisure reading, it becomes something that needs editing for accuracy and clarity…)

Constructions like this one seem to be based on a misunderstanding of a rare form that is acceptable, found in statements such as: They have never and will never come to our house. The difference, of course, is that here the two key verb forms, past participle and bare infinitive, coincidentally appear identical, come.

It is undeniably briefer — by one whole word! — to use the incorrect formula instead of 'I have never encouraged and will never encourage my children…', but the repetition of the verb would in fact make the meaning more plain and increase the emphasis, which is the effect the writer seems to want.

Alternatively, what's wrong with the even more emphatic: 'I have never encouraged my children to believe in Father Christmas, and I never will'?

Happy New Year! More mangles in 2013.