| Please can you help me | Könnten Sie mir bitte helfen? |
 |
| I'd like to buy .. | Ich möchte .. kaufen |
|
| How much is it? | Wieviel kostet es? |
|
| It's expensive! | Das kostet viel! |
|
| Just what I needed! | Genau das richtige! |
|
| the credit card | die Kreditkarte |
|
Explanations
möchte is the first person singular of the verb möchten 'would like to'.| I would like | ich möchte |
| He,she,it would like | er,sie,es möchte |
| We, you they would like | wir,Sie,sie möchten |
kaufen 'to buy' is an infinitive and in this type of grammatical structure the infinitive appears as the final word of the sentence.
The literal translation of 'Ich möchte .. kaufen' is 'I'd like ... to buy', with whatever it is you want to buy in the middle.