How will you justify that inter particle space are present in matter
"Encouraged" is the simple past and past participle of the verb "encourage".
choosing
The present participle of think is thinking. Present participles always end in -ing.
he or she barks or it barks present particle of bark
Lying around.
electrons are not present in the nucleus
If you mean subatomic particles, all of the standard ones are present.
Present participle - doing. Past participle - done.
Increased is the past tense of increase.
infinitive: become past: became past participle: become
Fun isn't a verb, so it doesn't have a past or present participle.