No. Bonk is a verb, possibly a noun. But not a preposition.
No, then is not a preposition. It is a conjuction.Than is a preposition.
At is a preposition. Anything that can be ___ the box is a preposition. For Example: At the box.
If is not a preposition. It is a conjunction.
If a preposition does not have an object, it is not a preposition. It is an adjective, adverb, or possibly a conjunction.
A prepositional phrase begins with a preposition and ends with an object of a preposition.
a rapper or a clown
Bonking is when you bonk someone on the head and yell BONK!!
Keiko Bonk was born in 1954.
Bonk's Adventure happened in 1989.
Bonk's Adventure was created in 1989.
Tino Bonk was born in 1967.
Bonk on the Head was created in 2005.
Bonk - album - was created in 1987.
Julia Bonk was born in 1986.
Radek Bonk was born on January 9, 1976.
Radek Bonk was born on January 9, 1976.
John Bonk was born on 1950-08-27.