1. The word “send” is a verb which means “to cause to go or to be taken somewhere” while the word “sent” is a conjugation of the verb “send.” 2. The word “send” is the present perfect tense of the verb while the word “sent” is the past tense and past participle tense of the verb.

Which is correct to be send or to be sent?

There is no such thing as "will be send". Passive always requires Past Participle, so look out for that. The Past Participle of "to send" is "sent".

Is send or sent past tense?

Sent /sent/ is the past tense and past participle of send. I sent you a text – didn't you get it? He had sent some flowers to Elena.