The past tense is spelled. (Spelt is also accepted but it's mostly British)
The past tense of "bite" is "bit."
The word "bit" is already past tense: the past tense of the verb "to bite."
He "Grabbed" the football.
The past tense of the verb jump is jumped
weighed(and it's past tense, not pass tense)
used
paid.
"Try" in the past is spelled like this: tried.
The word dived is one form of the past tense of to dive, and the past participle.The other version of the past tense is dove.
The past tense is had.
The word silo is a noun, and therefore does not have a past tense. It's a grain storage tower.
The past tense of have is had.