I can carpenter you can carpenter she can carpenter we can carpenter you can carpenter they can carpenter
V-ing form
I can be carpentering you can be carpentering she can be carpentering we can be carpentering you can be carpentering they can be carpentering
Perfect
I can have carpentered you can have carpentered she can have carpentered we can have carpentered you can have carpentered they can have carpentered
V-ing perfect
I can have been carpentering you can have been carpentering she can have been carpentering we can have been carpentering you can have been carpentering they can have been carpentering
Negation
Simple form
I cannot carpenter you cannot carpenter she cannot carpenter we cannot carpenter you cannot carpenter they cannot carpenter
V-ing form
I cannot be carpentering you cannot be carpentering she cannot be carpentering we cannot be carpentering you cannot be carpentering they cannot be carpentering
Perfect
I cannot have carpentered you cannot have carpentered she cannot have carpentered we cannot have carpentered you cannot have carpentered they cannot have carpentered
V-ing perfect
I cannot have been carpentering you cannot have been carpentering she cannot have been carpentering we cannot have been carpentering you cannot have been carpentering they cannot have been carpentering
Interrogative form
Simple form
can I carpenter? can you carpenter? can she carpenter? can we carpenter? can you carpenter? can they carpenter?
V-ing form
can I be carpentering? can you be carpentering? can she be carpentering? can we be carpentering? can you be carpentering? can they be carpentering?
Perfect
can I have carpentered? can you have carpentered? can she have carpentered? can we have carpentered? can you have carpentered? can they have carpentered?
V-ing perfect
can I have been carpentering? can you have been carpentering? can she have been carpentering? can we have been carpentering? can you have been carpentering? can they have been carpentering?
Interro-negative form
Simple form
can I not carpenter? can you not carpenter? can she not carpenter? can we not carpenter? can you not carpenter? can they not carpenter?
V-ing form
can I not be carpentering? can you not be carpentering? can she not be carpentering? can we not be carpentering? can you not be carpentering? can they not be carpentering?
Perfect
can I not have carpentered? can you not have carpentered? can she not have carpentered? can we not have carpentered? can you not have carpentered? can they not have carpentered?
V-ing perfect
can I not have been carpentering? can you not have been carpentering? can she not have been carpentering? can we not have been carpentering? can you not have been carpentering? can they not have been carpentering?