How can you present redoubtable to an audience?

It all depends on the size and venue of the event. For small meetings, one could use a small multimedia projector (for PPT reports) and handout for quick references. Or if the said meeting is just...

Yes there is a present and the present is now...like the past is something that happened yesterday and the future is something that will happen tomorrow. So the present is now.

problem and solution apex

for your devised piece etc, it will be teachers marking, and parents if you invite them

The present participle is "costing", and the present indicative tense is "cost" except for the third person singular, which is "costs".