Verb conjugation of "infest" in English

Place the cursor (using the mouse) on the section which you want to delete. Hold down the 'Shift' key and press the 'PageDown' key or the bottom arrow key. The document should then be marked in blue.
We can help each other with these language studies, this is also the main purpose of Vocabulix. I have already got in touch with some other users. I can speak Italian, but my grammar is weak.
I'm helping you with Spanish and you can help me with English. How did you teach yourself the grammar? Here in Zurich it has being raining for 5 days and we have spent most of the time in front of the TV.