This is my original sentence:
1A) Babies will reach out for toys when sitting, point at small items with their index finger, and use their index finger, middle fingers and thumb to form a pincer grip to pick up items and hold them in their hand.
I looked over it and I realised that I’m referring to babies therefore the body parts must be plural. So I changed it to:
1B) Babies will reach out for toys when sitting, point at small items with their index fingers, and use their index fingers, middle fingers and thumbs to form a pincer grip to pick up items and hold them in their hands.
Is this sentence grammatically correct? Can I write it like this or does it sound odd?
If it is fine, would I have to change feet to feets and hand to hands in these two sentences?
2) They will ride a tricycle by pushing along with their feets.
3) They will have progressed to drawing circles, lines, and dots using their preferred hands.
Best Answer
I do not agree with the other answer. The sentence should be:
This because also if the subject is plural - babies - each one of them only has 1 of each finger per hand - You cannot refer to body parts in a collective way in this case otherwise it sounds like each baby has many fingers. The collective form is already expressed by the plural pronoun. Only hand in the example above could be written in the plural, signifying that babies can hold the toy in one hand or using both hands.