<blockquote>Regular verbs are easy: Present: I need to __call__ my mother every day.Past: I __called__ my mother yesterday.</blockquote>But,<blockquote>Irregular verbs are tricky:Present: I need to __drink__ some water.Past: I __drank__ some water yesterday.</blockquote>Regular verbs are those which, in the past form, are appended with an "ed". Their past participle form is also the same as their past form. So, when you need to use the past participle form of a regular verb, you simply use:<blockquote>Past Participle verb rule for regular verbs: has/have/had + verb + ed</blockquote>But, for irregular verbs their past and past participle form are not the same:For example:1. Infinitive: begin | Past: began | Past Participle: begun2. Infinitive: become | Past: became | Past Participle: become3. Infinitive: blow | Past: blew | Past Participle: blown4. Infinitive: break | Past: broke | Past Participle: brokenAnother thing to note is that Past Participle MUST include a has/have/had before it:Examples:I have drunk more water today.I had driven 20 miles yesterday.He has thought very hard about this matter.This rule applies to both regular and irregular verbs!

Regular verbs are easy: 

Present: I need to __call__ my mother every day.

Past: I __called__ my mother yesterday.

But,

Irregul...

Aneek Rahman

Grammar: Irregular, Regular verbs and their differences