English verb conjugation
CAN PRECLEAN

Regular verb: preclean - precleaned - precleaned

Affirmation

Simple form	V-ing form
I can preclean you can preclean she can preclean we can preclean you can preclean they can preclean	I can be precleaning you can be precleaning she can be precleaning we can be precleaning you can be precleaning they can be precleaning
Perfect	V-ing perfect
I can have precleaned you can have precleaned she can have precleaned we can have precleaned you can have precleaned they can have precleaned	I can have been precleaning you can have been precleaning she can have been precleaning we can have been precleaning you can have been precleaning they can have been precleaning

Negation

Simple form	V-ing form
I cannot preclean you cannot preclean she cannot preclean we cannot preclean you cannot preclean they cannot preclean	I cannot be precleaning you cannot be precleaning she cannot be precleaning we cannot be precleaning you cannot be precleaning they cannot be precleaning
Perfect	V-ing perfect
I cannot have precleaned you cannot have precleaned she cannot have precleaned we cannot have precleaned you cannot have precleaned they cannot have precleaned	I cannot have been precleaning you cannot have been precleaning she cannot have been precleaning we cannot have been precleaning you cannot have been precleaning they cannot have been precleaning

Interrogative form

Simple form	V-ing form
can I preclean? can you preclean? can she preclean? can we preclean? can you preclean? can they preclean?	can I be precleaning? can you be precleaning? can she be precleaning? can we be precleaning? can you be precleaning? can they be precleaning?
Perfect	V-ing perfect
can I have precleaned? can you have precleaned? can she have precleaned? can we have precleaned? can you have precleaned? can they have precleaned?	can I have been precleaning? can you have been precleaning? can she have been precleaning? can we have been precleaning? can you have been precleaning? can they have been precleaning?

Interro-negative form

Simple form	V-ing form
can I not preclean? can you not preclean? can she not preclean? can we not preclean? can you not preclean? can they not preclean?	can I not be precleaning? can you not be precleaning? can she not be precleaning? can we not be precleaning? can you not be precleaning? can they not be precleaning?
Perfect	V-ing perfect
can I not have precleaned? can you not have precleaned? can she not have precleaned? can we not have precleaned? can you not have precleaned? can they not have precleaned?	can I not have been precleaning? can you not have been precleaning? can she not have been precleaning? can we not have been precleaning? can you not have been precleaning? can they not have been precleaning?