Affirmative

am/is/are + -ing

I	am	(= I'm)	controlling
he/she/it	is	(= he's etc.)	decreasing
we/you/they	are	(= we're etc.)	insulating

For example:

· I am plugging this device in today.

· Look! Current is flowing through the tube.

· They are placing the grid between the cathode and the plate at the moment.

Spelling

Verbs that end in – e (make) – ing: make-making

Verbs that end in – ie (lie) – ing: lie-lying

Negative

I he/she/it we/you/they

am not is not are not

controlling decreasing insulating

For example:

· I am not working as a physicist now.

· These devices are not heating this week.

· Look! They are not placing the grid between the cathode and the plate.

Questions

Am Is Are

I he/she/it we/you/they

controlling? decreasing? insulating?

For example:

· Why aren’t these devices heating this week?

· Look! They are placing the grid between the cathode and the plate at the moment, aren’t they?

Adjectives and adverbs

1) Adjective + noun

For example:

· a modern amplifier

· a good conductor

· a precise definition

But: Look/feel/smell/taste/sound/get + adjective

2) Verb + adverb

Adjective + -ly = adverb

For example:

Adjective Adverb

quick quickly

bad badly

sudden suddenly

careful carefully

heavy heavily

good well

· to control well

· to conduct readily

· to operate quickly