Suffixes s, ed, less and ing

Suffix ing: Means something is happening right now

Hitting

Suffix less: Means without

Hatless

Suffix ed: Means something has already happened

Jumped 

Suffix ed can have three sounds: d, t, ed

Suffix ed can only say ed when the last letter of the root word is letter d or the letter t.

Examples: belted  and padded

Suffix ed will sound like d or t at all other times.

When you have a word with a vowel and then a consonant you double the last consonant before adding a suffix with a vowel

Example: 

     pad    padded   

hit     hitting