Question

I___thought about this before I came here. (shall/should have)​

Answer 1

Answer:

should have is your answer

Answer 2

I should have thought about this before I came here

• Shall is the verb. It expresses the future tense. The word "shall" is used with first, second, and third-person pronouns.

• The verb 'Shall' is used to express the future tense whereas 'should' is the past tense of shall.

• Should is the past tense of shall. It is the modal auxiliary verb. It is used to indicate something that is probable.

• Hence, the correct sentence is "I should have thought about this before I came here".