English verb conjugation
CAN STRAITEN

Regular verb: straiten - straitened - straitened

Affirmation

Simple form	V-ing form
I can straiten you can straiten she can straiten we can straiten you can straiten they can straiten	I can be straitening you can be straitening she can be straitening we can be straitening you can be straitening they can be straitening
Perfect	V-ing perfect
I can have straitened you can have straitened she can have straitened we can have straitened you can have straitened they can have straitened	I can have been straitening you can have been straitening she can have been straitening we can have been straitening you can have been straitening they can have been straitening

Negation

Simple form	V-ing form
I cannot straiten you cannot straiten she cannot straiten we cannot straiten you cannot straiten they cannot straiten	I cannot be straitening you cannot be straitening she cannot be straitening we cannot be straitening you cannot be straitening they cannot be straitening
Perfect	V-ing perfect
I cannot have straitened you cannot have straitened she cannot have straitened we cannot have straitened you cannot have straitened they cannot have straitened	I cannot have been straitening you cannot have been straitening she cannot have been straitening we cannot have been straitening you cannot have been straitening they cannot have been straitening

Interrogative form

Simple form	V-ing form
can I straiten? can you straiten? can she straiten? can we straiten? can you straiten? can they straiten?	can I be straitening? can you be straitening? can she be straitening? can we be straitening? can you be straitening? can they be straitening?
Perfect	V-ing perfect
can I have straitened? can you have straitened? can she have straitened? can we have straitened? can you have straitened? can they have straitened?	can I have been straitening? can you have been straitening? can she have been straitening? can we have been straitening? can you have been straitening? can they have been straitening?

Interro-negative form

Simple form	V-ing form
can I not straiten? can you not straiten? can she not straiten? can we not straiten? can you not straiten? can they not straiten?	can I not be straitening? can you not be straitening? can she not be straitening? can we not be straitening? can you not be straitening? can they not be straitening?
Perfect	V-ing perfect
can I not have straitened? can you not have straitened? can she not have straitened? can we not have straitened? can you not have straitened? can they not have straitened?	can I not have been straitening? can you not have been straitening? can she not have been straitening? can we not have been straitening? can you not have been straitening? can they not have been straitening?