extend / expand /build on
In class , how can I express the following naturally?

These are just a few words / expressions. The list can be expanded/ extended if you look up your dictionaries.

These are not the only expressions we have there are many more you can build on

You can build on these and create a wider list of words

Could you say how a teacher would express this'?

Thank you ever so much

Question

extend  / expand /build on
In class , how can I express the following naturally?

These are just a few words / expressions. The list  can be expanded/ extended if you look up your dictionaries.

These are not the only expressions we have there are many more you can build on

You can build on these and create a wider list of words

Could you say how  a teacher  would express this'?

Thank you ever so much

Answer

Expressions usually aren't in dictionaries, as they usually are not individual words.

I would say:

Here are a few expressions you might see or encounter. These are not the only expressions and you can build a wider list and can provide your own examples.

Example in Spanish an expression might be: Mi casa es su casa. The English equivalent would be: Make yourself at home.

Verpassen Sie nicht die Gelegenheit, bequem von zu Hause aus eine Sprache zu lernen. Stöbern Sie in unserer Auswahl an erfahrenen Sprachlehrern und melden Sie sich jetzt zu Ihrer ersten Unterrichtsstunde an!