- This is the first time I have ever been bungee jumping.
- This is the first time I have ever bungee jumped.
- This is the first time I have ever tried bungee jumping.
- This is the first time I ever bungee jumped.
- This is the first time I am bungee jumping.
- This is the first time I bungee jumps.
Are the above sentences grammatically correct (minor differences in meaning aside)? Which one sounds the most natural? Could the "been bungee jumping" of the sentence #1 be construed as a variant of "go fishing" (where "go" is replaced by "been")?