here in preceding sentence, "for" is being used as conjunction that means because. Generally, you can't use "for" as a conjunction at the beginning of a sentence. Most of time, "for" is used for giving reason. ex- I am here, for she is ill.

You can edit your sentence adding 'comma' in place of 'period'.

here in preceding sentence, "for" is being used as conjunction that means because. Generally, you can't use "for" as a conjunction at the beginning of a sentence. Most of time, "for" is used for giving reason. ex- I am here, for she is ill.

You can edit your sentence adding 'comma' in place of 'period' just before for.