have / has understood.

I have understood everything you said.

She has understood the experiment quite well.

• Subject + do + verb (However, 'do' is only used in negative sentences)

For example:

• I like.
• You do not like.

• Subject + auxiliary verb 'be' + present participle.

For example:

• I am playing.
• You/we are playing.
• He/she/it is playing.

• Subject + have/has + past participle.

For example:

• I have finished.
• He has finished.

• Subject + have/has + been + present participle

For example:

• I have been working.
• She has been working.

Verbs describe (i) an action, (ii) a state or (iii) an occurrence:-

1. As an action word, it is something that you do, like walk or play or eat.
2. As a state of being: "My name is John. I am 20 years old. I am Caucasian and my girlfriend looksgorgeous! And she has a heart of gold!"
3. As an occurrence/happening: "The snow glistened on the trees tops."

1. ACTION VERBS are something that someone or something is doing, such as run, talk, play, go, cook, speak, etc.

For example, in the phrase: "He is running", the two words 'is running' is the present continuous form of the verb 'to run'.

Here are a few more examples:

• They slept late that day.
• It slid off the shelf.
• Safa played with her toys.
• She screamed as loudly as she could.

2. 'STATE' VERBS

Examples:

• Ice is cold. Puppies need a lot of care and attention. Bananas are yellow. Some people preferwinter to summer. Does life exist on other planets? Do you know what I mean?

3. 'OCCURRENCE' VERBS

Examples:

• The centenary of Florence Nightingale's death fell on Monday 10th May, 2010.
• William becomes six on Tuesday.
• A completely happy day? It happens, sometimes!

REGULAR AND IRREGULAR VERBS

With regular verbs, the past and perfect forms end with '~ed', e.g. talk/talked.

Irregular verbs do not end their past and perfect forms with '~ed'. They change quite differently e.g. speak/spoke/spoken, sing/sang/sung.

AUXILIARY VERBS are words that "help" the verb. e.g.

• In the sentence "I will run", 'will' is the helping verb, making it into a future form of the verb to run.
• In the sentence "I have run", 'have' is the helping verb, changing the main verb 'run' into it's present perfect form.

The verbs to be, to have and to do are used as auxiliary verbs. Their present, past, singular and plural forms all being used as appropriate.

MODAL AUXILIARY VERBS: can, could, may, might, would, shall, should, must, ought to.

Examples:

• I must visit my grandmother.
• You ought to do more exercise.
• Ben can ride a bike.
• My Uncle might come on Sunday.
• I could help you with your homework, but I don't know if I should (help you with your homework.)

Note that Modal Auxiliary Verbs have no infinitives.

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For more information about verbs, see 'Related links'below this box.

The present simple of get is get / gets

Examples

'I think we get our results today.'

'We get our milk delivered to our house.'

'We don't always get what we deserve.'

'They get their milk from the farm.'

'Did you get your bag from that new shop?'

'Please get me a hot drink.'

'Mary gets her good looks and caring nature from her mother.'

The dog gets tired easily

It gets cold in August