Have a look at the power point below which shows you how to turn verbs into past and present tense when they end with two consonants next to each other.
Now you've seen the power point have a go at changing the end to the verbs below
I have added a photo below showing how I would lay it out (you're welcome to lay it out how you like) and an example. If you want to push yourself you can also write a sentence containing the word.
To find the ending to these words (hint: they do not follow the same rules as you've learnt today).