The verb form “considering” is correct because it directly follows the preposition “for.” English grammar dictates that verbs after prepositions take the gerund (-ing) form.
Using gerunds after prepositions ensures proper sentence structure and clarity.
Examples include phrases like “thank you for helping,” “interested in learning,” and “good at singing,” all using the gerund form.
Consequently, “considering” is the grammatically correct choice to follow “for.”