English verb conjugation
CAN STRAITEN

Regular verb: straiten - straitened - straitened

Affirmation

Simple form	V-ing form
I can straiten you can straiten he can straiten we can straiten you can straiten they can straiten	I can be straitening you can be straitening he 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 he 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 he 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 can't straiten you can't straiten he can't straiten we can't straiten you can't straiten they can't straiten	I can't be straitening you can't be straitening he can't be straitening we can't be straitening you can't be straitening they can't be straitening
Perfect	V-ing perfect
I can't have straitened you can't have straitened he can't have straitened we can't have straitened you can't have straitened they can't have straitened	I can't have been straitening you can't have been straitening he can't have been straitening we can't have been straitening you can't have been straitening they can't have been straitening

Interrogative form

Simple form	V-ing form
can I straiten? can you straiten? can he straiten? can we straiten? can you straiten? can they straiten?	can I be straitening? can you be straitening? can he 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 he 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 he 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't I straiten? can't you straiten? can't he straiten? can't we straiten? can't you straiten? can't they straiten?	can't I be straitening? can't you be straitening? can't he be straitening? can't we be straitening? can't you be straitening? can't they be straitening?
Perfect	V-ing perfect
can't I have straitened? can't you have straitened? can't he have straitened? can't we have straitened? can't you have straitened? can't they have straitened?	can't I have been straitening? can't you have been straitening? can't he have been straitening? can't we have been straitening? can't you have been straitening? can't they have been straitening?