need to know some examples for the nominative comparative and superlative of irregular words apart from good better best , bad worse worst and little less least

http://grammar.ccc.commnet.edu/grammar/adjectives.htm#comparative

There aren't very many. The second chart here shows them. Another thing is a whole slew of adjectives that don't have comparatives or superlatives. See the list of those on this webpage, too.

The other thing you need to know is which adjectives form comparatives and superlatives with the standard endings (-er and -est) and which with the words more, very, etc. There is no magic list for those, though. You just have to know them.

Here's another chart with the most irregular:
http://www.englishclub.com/vocabulary/irregular-adjectives.htm

Sure! Here are a few examples of irregular comparative and superlative forms of some common adjectives:

1. Irregular adjective: "Far"
- Comparative: farther (or further)
- Superlative: farthest (or furthest)

Example: "Tom's house is farther (or further) than Jane's house, but John's house is the farthest (or furthest) from here."

2. Irregular adjective: "Many" or "much"
- Comparative: more
- Superlative: most

Example: "She has more friends than I do, but he has the most friends in our group."

3. Irregular adjective: "Good"
- Comparative: better
- Superlative: best

Example: "The new phone is better than the old one, but this phone is the best on the market."

4. Irregular adjective: "Bad"
- Comparative: worse
- Superlative: worst

Example: "The weather today is worse than yesterday, but the forecast says tomorrow will be the worst."

5. Irregular adjective: "Little"
- Comparative: less
- Superlative: least

Example: "He has less money than his brother, but she has the least amount of money out of all of them."

Remember that irregular adjectives do not follow the same pattern as regular comparatives and superlatives (-er and -est endings). Instead, they have their own unique forms.