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Participle
sings sang singing sung

Simple Verb - This is the base form of the verb. This is used to show actions in Simple

Present Tense.

Example: sing, buy

Simple Past- It is the past form of the simple verb and is used to show actions in
Simple Past Tense.

Simple Verb Simple Past
sing Sang
buy Bought

Present Participle-
 It shows continuous action. It is formed by adding the suffix –ing to the simple verb.
 It is used with the helping verbs is/am/are/was/were.
Examples: is singing am singing are singing

Simple Verb Simple Past Present Participle
Sing Sang sing +ing = singing

Past Participle

 It is used to show actions that just completed at a given time.
 They are formed by adding the suffix –ed,–d or –t to the simple verb.
 It is used with the helping verbs ‘has/have/had’.
Examples: has played have played had played

Simple Verb Simple Past Present Participle Past participle
Sing Sang sing +ing = singing Sung
STRONG VERBS AND WEAK VERBS
 There are verbs that remain the same in their simple past and past participle forms.
Such verbs are called Weak Verbs or Regular verbs.
 We usually add –d, -ed or–t at the end of these verbs to change them to simple past
and past participle.

 There are some verbs which do not follow this regular pattern and are, therefore,
called Strong verbs or Irregular verbs.
 They change to simple past and past participle without using –d, -ed or–t.
Example: - rise rose rising risen
swim swam swimming swum