I can weatherise you can weatherise he can weatherise we can weatherise you can weatherise they can weatherise
V-ing form
I can be weatherising you can be weatherising he can be weatherising we can be weatherising you can be weatherising they can be weatherising
Perfect
I can have weatherised you can have weatherised he can have weatherised we can have weatherised you can have weatherised they can have weatherised
V-ing perfect
I can have been weatherising you can have been weatherising he can have been weatherising we can have been weatherising you can have been weatherising they can have been weatherising
Negation
Simple form
I cannot weatherise you cannot weatherise he cannot weatherise we cannot weatherise you cannot weatherise they cannot weatherise
V-ing form
I cannot be weatherising you cannot be weatherising he cannot be weatherising we cannot be weatherising you cannot be weatherising they cannot be weatherising
Perfect
I cannot have weatherised you cannot have weatherised he cannot have weatherised we cannot have weatherised you cannot have weatherised they cannot have weatherised
V-ing perfect
I cannot have been weatherising you cannot have been weatherising he cannot have been weatherising we cannot have been weatherising you cannot have been weatherising they cannot have been weatherising
Interrogative form
Simple form
can I weatherise? can you weatherise? can he weatherise? can we weatherise? can you weatherise? can they weatherise?
V-ing form
can I be weatherising? can you be weatherising? can he be weatherising? can we be weatherising? can you be weatherising? can they be weatherising?
Perfect
can I have weatherised? can you have weatherised? can he have weatherised? can we have weatherised? can you have weatherised? can they have weatherised?
V-ing perfect
can I have been weatherising? can you have been weatherising? can he have been weatherising? can we have been weatherising? can you have been weatherising? can they have been weatherising?
Interro-negative form
Simple form
can I not weatherise? can you not weatherise? can he not weatherise? can we not weatherise? can you not weatherise? can they not weatherise?
V-ing form
can I not be weatherising? can you not be weatherising? can he not be weatherising? can we not be weatherising? can you not be weatherising? can they not be weatherising?
Perfect
can I not have weatherised? can you not have weatherised? can he not have weatherised? can we not have weatherised? can you not have weatherised? can they not have weatherised?
V-ing perfect
can I not have been weatherising? can you not have been weatherising? can he not have been weatherising? can we not have been weatherising? can you not have been weatherising? can they not have been weatherising?