A positive statement is followed by a negative tagA negative statement is followed by a negative tag
Tag rugby is a sport that is often played in schools. The rules are the same as normal rugby but you tag people rather than tackle.
The question tag for "you were" would be "weren't you?"
The tag question is "doesn't he?"
She is (positive) beautiful, isn't (negative) she?
She can do it correctly, couldn't she? Is the correct question tag of the statement.
The tag question for "The book was lost" would be "wasn't it?"
The tag question for "well come" would be "isn't it?" For example, if you say "You did well come," the tag question would be "isn't it?"
It is like paintball mixed with laser tag. Same rules as laser tag but you use paintball guns with rubber ammo.
Rather than attempt to summarise the rules, which are numerous here is the web address to get the best information http://www.coachingrugby.com/tag/laws/laws.htm
The tag question for "He is too young to drive" would be "Isn't he?"
ought is a "positive" word, so the question tag should be a "negative" you can replace "ought" with "should" so a possible question tag is shouldn't