English verb conjugation
CAN PRECLEAN

Regular verb: preclean - precleaned - precleaned

Affirmation

Simple form	V-ing form
I can preclean you can preclean he can preclean we can preclean you can preclean they can preclean	I can be precleaning you can be precleaning he 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 he 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 he 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 can't preclean you can't preclean he can't preclean we can't preclean you can't preclean they can't preclean	I can't be precleaning you can't be precleaning he can't be precleaning we can't be precleaning you can't be precleaning they can't be precleaning
Perfect	V-ing perfect
I can't have precleaned you can't have precleaned he can't have precleaned we can't have precleaned you can't have precleaned they can't have precleaned	I can't have been precleaning you can't have been precleaning he can't have been precleaning we can't have been precleaning you can't have been precleaning they can't have been precleaning

Interrogative form

Simple form	V-ing form
can I preclean? can you preclean? can he preclean? can we preclean? can you preclean? can they preclean?	can I be precleaning? can you be precleaning? can he 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 he 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 he 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't I preclean? can't you preclean? can't he preclean? can't we preclean? can't you preclean? can't they preclean?	can't I be precleaning? can't you be precleaning? can't he be precleaning? can't we be precleaning? can't you be precleaning? can't they be precleaning?
Perfect	V-ing perfect
can't I have precleaned? can't you have precleaned? can't he have precleaned? can't we have precleaned? can't you have precleaned? can't they have precleaned?	can't I have been precleaning? can't you have been precleaning? can't he have been precleaning? can't we have been precleaning? can't you have been precleaning? can't they have been precleaning?