I can wester you can wester she can wester we can wester you can wester they can wester
V-ing form
I can be westering you can be westering she can be westering we can be westering you can be westering they can be westering
Perfect
I can have westered you can have westered she can have westered we can have westered you can have westered they can have westered
V-ing perfect
I can have been westering you can have been westering she can have been westering we can have been westering you can have been westering they can have been westering
Negation
Simple form
I cannot wester you cannot wester she cannot wester we cannot wester you cannot wester they cannot wester
V-ing form
I cannot be westering you cannot be westering she cannot be westering we cannot be westering you cannot be westering they cannot be westering
Perfect
I cannot have westered you cannot have westered she cannot have westered we cannot have westered you cannot have westered they cannot have westered
V-ing perfect
I cannot have been westering you cannot have been westering she cannot have been westering we cannot have been westering you cannot have been westering they cannot have been westering
Interrogative form
Simple form
can I wester? can you wester? can she wester? can we wester? can you wester? can they wester?
V-ing form
can I be westering? can you be westering? can she be westering? can we be westering? can you be westering? can they be westering?
Perfect
can I have westered? can you have westered? can she have westered? can we have westered? can you have westered? can they have westered?
V-ing perfect
can I have been westering? can you have been westering? can she have been westering? can we have been westering? can you have been westering? can they have been westering?
Interro-negative form
Simple form
can I not wester? can you not wester? can she not wester? can we not wester? can you not wester? can they not wester?
V-ing form
can I not be westering? can you not be westering? can she not be westering? can we not be westering? can you not be westering? can they not be westering?
Perfect
can I not have westered? can you not have westered? can she not have westered? can we not have westered? can you not have westered? can they not have westered?
V-ing perfect
can I not have been westering? can you not have been westering? can she not have been westering? can we not have been westering? can you not have been westering? can they not have been westering?