Select the option that will improve the highlighted part of the given sentence.
I was look forward to helping you complete the project.

Correct option is B

The correct substitution of the highlighted words is (b) look forward to helping.
Explanation: The correct form is "look forward to + verb-ing", where "to" is a preposition, not part of the infinitive. Therefore, the verb following it must be in gerund (–ing) form. Hence, "look forward to helping" is grammatically correct.
Grammatical rule used:
After certain expressions that include prepositions such as "look forward to", "be used to", "object to", the verb that follows must be in the gerund form (verb+ing).
Example: I am looking forward to meeting you.
Correct: She is looking forward to joining the team.
Incorrect: She is looking forward to join the team.
Information Booster:
· “To” is often mistaken as part of an infinitive, but when used as a preposition (like in phrasal verbs), it requires a gerund.
Why other options are incorrect:
· (a) look forward helping – Missing preposition “to”, hence incorrect.
· (c) look forwarding to helps – “Forwarding” is incorrect tense/form; “helps” is base form and not gerund.
· (d) look forwarding to helping – “Forwarding” is again incorrect tense; it changes the verb meaning.
Thus, the correct answer is (b) look forward to helping.